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135-547: The plan was a default plan in case it was impossible to defend the Polish borders, and it assumed that the Polish forces would be able to retreat to the area, organise a successful defence until the winter and hold out until the promised French offensive on the Western Front had started. Rydz-Śmigły predicted that the hills, valleys, swamps and the rivers Stryj and Dniester would provide natural lines of defence against

270-420: A cruise missile ); and covert insertion of frogmen or special forces . Their civilian uses include: marine science ; salvage ; exploration; and facility inspection and maintenance. Submarines can be modified for specialized functions such as search-and-rescue missions and undersea cable repair. They are also used in the tourism industry and in undersea archaeology . Modern deep-diving submarines derive from

405-457: A submersible , which has more limited underwater capability.) The term “submarine” is also sometimes used historically or informally to refer to remotely operated vehicles and robots , or to medium-sized or smaller vessels (such as the midget submarine and the wet sub ). Submarines are referred to as boats rather than ships regardless of their size. Although experimental submarines had been built earlier, submarine design took off during

540-853: A Christian in the event of victory against the Visigothic Kingdom , which was said to have guaranteed the battle. Clovis regained the southwest from the Visigoths and was baptised in 508. Clovis I was the first Germanic conqueror after the Fall of the Western Roman Empire to convert to Catholic Christianity; thus France was given the title "Eldest daughter of the Church" by the papacy, and French kings called "the Most Christian Kings of France". The Franks embraced

675-425: A European counterweight between American and Soviet spheres of influence. However, he opposed any development of a supranational Europe , favouring sovereign nations . The revolt of May 1968 had an enormous social impact; it was a watershed moment when a conservative moral ideal (religion, patriotism, respect for authority) shifted to a more liberal moral ideal (secularism, individualism, sexual revolution). Although

810-407: A carrying capacity of 50 to 100 passengers. In a typical operation a surface vessel carries passengers to an offshore operating area and loads them into the submarine. The submarine then visits underwater points of interest such as natural or artificial reef structures. To surface safely without danger of collision the location of the submarine is marked with an air release and movement to the surface

945-759: A combination of social, political and economic factors, which the Ancien Régime proved unable to manage. A financial crisis and social distress led in May 1789 to the convocation of the Estates General , which was converted into a National Assembly in June. The Storming of the Bastille on 14 July led to a series of radical measures by the Assembly, among them the abolition of feudalism , state control over

1080-569: A coup and civil war. During the May 1958 crisis , the weak Fourth Republic gave way to the Fifth Republic , which included a strengthened presidency. The war concluded with the Évian Accords in 1962 which led to Algerian independence , at a high price: between half a million and one million deaths and over 2 million internally-displaced Algerians. Around one million Pied-Noirs and Harkis fled from Algeria to France. A vestige of empire

1215-475: A hand-powered acorn-shaped device designed by the American David Bushnell to accommodate a single person. It was the first verified submarine capable of independent underwater operation and movement, and the first to use screws for propulsion. In 1800, France built Nautilus , a human-powered submarine designed by American Robert Fulton . They gave up on the experiment in 1804, as did

1350-636: A noun it generally refers to a vessel that can travel underwater. The term is a contraction of submarine boat . and occurs as such in several languages, e.g. French ( sous-marin ), and Spanish ( submarino ), although others retain the original term, such as Dutch ( Onderzeeboot ), German ( Unterseeboot ), Swedish ( Undervattensbåt ), and Russian ( подводная лодка : podvodnaya lodka ), all of which mean 'submarine boat'. By naval tradition , submarines are usually referred to as boats rather than as ships , regardless of their size. Although referred to informally as boats , U.S. submarines employ

1485-759: A path towards the Romanian Bridgehead, such as Kraków Army in the Battle of Tomaszów Lubelski . Some of Kazimierz Sosnkowski 's units managed to evade German capture and continued the fight in Lwów , but others were stopped and captured by Soviet armored units. It was the intervention by the Red Army , which created a two-front war , that sealed the fate of the Romanian Bridgehead. Fragmented Polish units attempted to push southward and clear paths with limited success and started diversionary skirmishes, which slowed

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1620-532: A period of economic prosperity and cultural and scientific flourishing known as the Belle Époque . France was one of the major participants of World War I , from which it emerged victorious at great human and economic cost. It was among the Allies of World War II , but it surrendered and was occupied in 1940. Following its liberation in 1944 , the short-lived Fourth Republic was established and later dissolved in

1755-507: A pivotal time in submarine development, and several important technologies appeared. A number of nations built and used submarines. Diesel electric propulsion became the dominant power system and equipment such as the periscope became standardized. Countries conducted many experiments on effective tactics and weapons for submarines, which led to their large impact in World War I . The first submarine not relying on human power for propulsion

1890-796: A single torpedo , in 1885. A reliable means of propulsion for the submerged vessel was only made possible in the 1880s with the advent of the necessary electric battery technology. The first electrically powered boats were built by Isaac Peral y Caballero in Spain (who built Peral ), Dupuy de Lôme (who built Gymnote ) and Gustave Zédé (who built Sirène ) in France, and James Franklin Waddington (who built Porpoise ) in England. Peral's design featured torpedoes and other systems that later became standard in submarines. Commissioned in June 1900,

2025-531: A spar as a torpedo charge. The Hunley also sank. The explosion's shock waves may have killed its crew instantly, preventing them from pumping the bilge or propelling the submarine. In 1866, Sub Marine Explorer was the first submarine to successfully dive, cruise underwater, and resurface under the crew's control. The design by German American Julius H. Kroehl (in German, Kröhl ) incorporated elements that are still used in modern submarines. In 1866, Flach

2160-447: A submarine lies in its ability to remain concealed in the depths of the ocean. Early submarines could be detected by the sound they made. Water is an excellent conductor of sound (much better than air), and submarines can detect and track comparatively noisy surface ships from long distances. Modern submarines are built with an emphasis on stealth . Advanced propeller designs, extensive sound-reducing insulation, and special machinery help

2295-422: A submarine remain as quiet as ambient ocean noise, making them difficult to detect. It takes specialized technology to find and attack modern submarines. Active sonar uses the reflection of sound emitted from the search equipment to detect submarines. It has been used since WWII by surface ships, submarines and aircraft (via dropped buoys and helicopter "dipping" arrays), but it reveals the emitter's position, and

2430-550: A successful firing solution against a three-dimensionally maneuvering target using techniques which became the basis of modern torpedo computer targeting systems. Seventy-four British submarines were lost, the majority, forty-two, in the Mediterranean. The first launch of a cruise missile ( SSM-N-8 Regulus ) from a submarine occurred in July 1953, from the deck of USS  Tunny , a World War II fleet boat modified to carry

2565-691: A test dive while at its operational limit, and USS  Scorpion due to unknown causes. During the Indo-Pakistani War of 1971 , the Pakistan Navy 's Hangor sank the Indian frigate INS  Khukri . This was the first sinking by a submarine since World War II. During the same war, Ghazi , a Tench -class submarine on loan to Pakistan from the US, was sunk by the Indian Navy . It

2700-535: A total of 74 submarines, though of mixed effectiveness. In August 1914, a flotilla of ten U-boats sailed from their base in Heligoland to attack Royal Navy warships in the North Sea in the first submarine war patrol in history. The U-boats' ability to function as practical war machines relied on new tactics, their numbers, and submarine technologies such as combination diesel–electric power system developed in

2835-567: A wide range of types and capabilities. They range from small, autonomous examples, such as one- or two-person subs that operate for a few hours, to vessels that can remain submerged for six months, such as the Russian Typhoon class , (the biggest submarines ever built). Submarines can work at depths that are greater than what is practicable (or even survivable) for human divers . The word submarine means 'underwater' or 'under-sea' (as in submarine canyon , submarine pipeline ) though as

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2970-636: Is a founding and leading member of the European Union and the eurozone , as well as a member of the Group of Seven , North Atlantic Treaty Organization (NATO), Organisation for Economic Co-operation and Development (OECD), and Francophonie . Originally applied to the whole Frankish Empire , the name France comes from the Latin Francia , or "realm of the Franks ". The name of

3105-425: Is a public establishment in France between local authorities and the national government covering an inhabited rural area of outstanding beauty, to protect the scenery and heritage as well as setting up sustainable economic development in the area. As of 2019 there are 54 PNRs in France. Submarines A submarine (or sub ) is a watercraft capable of independent operation underwater. (It differs from

3240-593: Is now France date from approximately 1.8 million years ago. Neanderthals occupied the region into the Upper Paleolithic era but were slowly replaced by Homo sapiens around 35,000 BC. This period witnessed the emergence of cave painting in the Dordogne and Pyrenees , including at Lascaux , dated to c.  18,000 BC. At the end of the Last Glacial Period (10,000 BC),

3375-528: Is susceptible to counter-measures. A concealed military submarine is a real threat, and because of its stealth, can force an enemy navy to waste resources searching large areas of ocean and protecting ships against attack. This advantage was vividly demonstrated in the 1982 Falklands War when the British nuclear-powered submarine HMS  Conqueror sank the Argentine cruiser General Belgrano . After

3510-572: Is the French overseas departments and territories . During the Cold War , de Gaulle pursued a policy of "national independence" towards the Western and Eastern blocs . He withdrew from NATO's military-integrated command (while remaining within the alliance), launched a nuclear development programme and made France the fourth nuclear power . He restored cordial Franco-German relations to create

3645-486: Is the world's leading tourist destination , receiving 100 million foreign visitors in 2023 . A developed country , France has a high nominal per capita income globally , and its advanced economy ranks among the largest in the world . It is a great power , being one of the five permanent members of the United Nations Security Council and an official nuclear-weapon state . France

3780-475: The Gato , Balao , and Tench classes were commissioned during the war. During the war, 52 US submarines were lost to all causes, with 48 directly due to hostilities. US submarines sank 1,560 enemy vessels, a total tonnage of 5.3 million tons (55% of the total sunk). The Royal Navy Submarine Service was used primarily in the classic Axis blockade . Its major operating areas were around Norway, in

3915-765: The francisca ), although these weapons may have been named because of their use by the Franks, not the other way around. In English, 'France' is pronounced / f r æ n s / FRANSS in American English and / f r ɑː n s / FRAHNSS or / f r æ n s / FRANSS in British English. The pronunciation with / ɑː / is mostly confined to accents with the trap-bath split such as Received Pronunciation , though it can be also heard in some other dialects such as Cardiff English . The oldest traces of archaic humans in what

4050-512: The 1973 oil crisis , which now accounts for 75 per cent of its electricity production and results in less pollution. According to the 2020 Environmental Performance Index conducted by Yale and Columbia , France was the fifth most environmentally conscious country in the world. Like all European Union state members, France agreed to cut carbon emissions by at least 20% of 1990 levels by 2020. As of 2009 , French carbon dioxide emissions per capita were lower than that of China. The country

4185-632: The 1995 public transport bombings , France has been targeted by Islamist organisations, notably the Charlie Hebdo attack in 2015 which provoked the largest public rallies in French history, gathering 4.4 million people, the November 2015 Paris attacks which resulted in 130 deaths, the deadliest attack on French soil since World War II and the deadliest in the European Union since

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4320-555: The Battle of Hastings in 1066, William the Conqueror added "King of England" to his titles, becoming vassal and the equal of the king of France, creating recurring tensions. The Carolingian dynasty ruled France until 987, when Hugh Capet was crowned king of the Franks . His descendants unified the country through wars and inheritance. From 1190, the Capetian rulers began to be referred as "kings of France" rather than "kings of

4455-591: The British Isles and Switzerland . The wars were ended by Henry IV 's Edict of Nantes , which granted some freedom of religion to the Huguenots. Spanish troops, assisted the Catholics from 1589 to 1594 and invaded France in 1597. Spain and France returned to all-out war between 1635 and 1659. The war cost France 300,000 casualties. Under Louis XIII , Cardinal Richelieu promoted centralisation of

4590-564: The Carnac stones site (approximately 3,300 BC). In 600 BC, Ionian Greeks from Phocaea founded the colony of Massalia (present-day Marseille ). Celtic tribes penetrated parts of eastern and northern France, spreading through the rest of the country between the 5th and 3rd century BC. Around 390 BC, the Gallic chieftain Brennus and his troops made their way to Roman Italy , defeated

4725-740: The Catholic Church in France , and a declaration of rights . The next three years were dominated by struggle for political control, exacerbated by economic depression . Military defeats following the outbreak of the French Revolutionary Wars in April 1792 resulted in the insurrection of 10 August 1792 . The monarchy was abolished and replaced by the French First Republic in September, while Louis XVI

4860-609: The Consulate seized power in a coup led by Napoleon . Napoleon became First Consul in 1799 and later Emperor of the French Empire (1804–1814; 1815). Changing sets of European coalitions declared wars on Napoleon's empire . His armies conquered most of continental Europe with swift victories such as the battles of Jena-Auerstadt and Austerlitz . Members of the Bonaparte family were appointed monarchs in some of

4995-853: The European Union  (green) France , officially the French Republic , is a country located primarily in Western Europe . Its overseas regions and territories include French Guiana in South America , Saint Pierre and Miquelon in the North Atlantic, the French West Indies , and many islands in Oceania and the Indian Ocean , giving it one of the largest discontiguous exclusive economic zones in

5130-855: The First French Empire . The collapse of the empire initiated a period of relative decline, in which France endured the Bourbon Restoration until the founding of the French Second Republic which was succeeded by the Second French Empire upon Napoleon III 's takeover. His empire collapsed during the Franco-Prussian War in 1870. This led to the establishment of the Third French Republic , and subsequent decades saw

5265-579: The German advance. The area was also home to many ammunition dumps that were prepared for the third wave of Polish troops, and it was linked by transport to the Romanian port of Constanța , which could be used to resupply the Polish troops. The plan is one of the reasons that the Polish–Romanian alliance was not activated by Poland. Poland and Romania had been allied since 1921, and the defensive pact

5400-1103: The Hercynian uplift in the Paleozoic Era , the Armorican Massif , the Massif Central , the Morvan , the Vosges and Ardennes ranges and the island of Corsica were formed. These massifs delineate several sedimentary basins such as the Aquitaine Basin in the southwest and the Paris Basin in the north. Various routes of natural passage, such as the Rhône Valley , allow easy communication. The Alpine, Pyrenean and Jura mountains are much younger and have less eroded forms. At 4,810.45 metres (15,782 ft) above sea level, Mont Blanc , located in

5535-437: The Holland Torpedo Boat Company from 1901 to 1903. Construction of the boats took longer than anticipated, with the first only ready for a diving trial at sea on 6 April 1902. Although the design had been purchased entirely from the US company, the actual design used was an untested improvement to the original Holland design using a new 180 horsepower (130 kW) petrol engine. These types of submarines were first used during

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5670-405: The House of Plantagenet , rulers of the County of Anjou , established its dominion over the surrounding provinces of Maine and Touraine , then built an "empire" from England to the Pyrenees , covering half of modern France. Tensions between France and the Plantagenet empire would last a hundred years, until Philip II of France conquered, between 1202 and 1214, most continental possessions of

5805-406: The Madrid train bombings in 2004 . Opération Chammal , France's military efforts to contain ISIS , killed over 1,000 ISIS troops between 2014 and 2015. The vast majority of France's territory and population is situated in Western Europe and is called Metropolitan France . It is bordered by the North Sea in the north, the English Channel in the northwest, the Atlantic Ocean in the west and

5940-431: The Mediterranean (against the Axis supply routes to North Africa), and in the Far East. In that war, British submarines sank 2 million tons of enemy shipping and 57 major warships, the latter including 35 submarines. Among these is the only documented instance of a submarine sinking another submarine while both were submerged. This occurred when HMS  Venturer engaged U-864 ; the Venturer crew manually computed

6075-402: The Mediterranean Sea in the southeast. Its land borders consist of Belgium and Luxembourg in the northeast, Germany and Switzerland in the east, Italy and Monaco in the southeast, and Andorra and Spain in the south and southwest. Except for the northeast, most of France's land borders are roughly delineated by natural boundaries and geographic features: to the south and southeast,

6210-469: The North Sea . Its eighteen integral regions (five of which are overseas) span a combined area of 643,801 km (248,573 sq mi) and have a total population of 68.4 million as of January 2024 . France is a semi-presidential republic with its capital in Paris , the country's largest city and main cultural and commercial centre. Metropolitan France was settled during the Iron Age by Celtic tribes known as Gauls before Rome annexed

6345-445: The Polish Army to hold out, at least in eastern parts of the country. During the late hours of that day, the Polish government and members of the military high command crossed the Polish–Romanian border with the intention of relocating to France, where the Polish forces in the west were being formed. Polish units were ordered to evacuate Poland and to reorganise in France. Polish units launched new counteroffensives in attempt to clear

6480-459: The Popular Front government (e.g., annual leave , eight-hour workdays , women in government ). In 1940, France was invaded and quickly defeated by Nazi Germany . France was divided into a German occupation zone in the north, an Italian occupation zone and an unoccupied territory, the rest of France, which consisted of the southern France and the French empire. The Vichy government , an authoritarian regime collaborating with Germany, ruled

6615-414: The Russo-Japanese War of 1904–05. Due to the blockade at Port Arthur , the Russians sent their submarines to Vladivostok , where by 1 January 1905 there were seven boats, enough to create the world's first "operational submarine fleet". The new submarine fleet began patrols on 14 February, usually lasting for about 24 hours each. The first confrontation with Japanese warships occurred on 29 April 1905 when

6750-488: The Seven Years' War (1756–1763). Its European territory kept growing, however, with acquisitions such as Lorraine and Corsica . Louis XV's weak rule, including the decadence of his court, discredited the monarchy, which in part paved the way for the French Revolution . Louis XVI (r. 1774–1793) supported America with money, fleets and armies , helping them win independence from Great Britain . France gained revenge, but verged on bankruptcy—a factor that contributed to

6885-421: The Thirty Years' War and further increased its influence during the reign of Louis XIV . The French Revolution of 1789 overthrew the Ancien Régime and produced the Declaration of the Rights of Man , which expresses the nation's ideals to this day. France reached its political and military zenith in the early 19th century under Napoleon Bonaparte , subjugating part of continental Europe and establishing

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7020-409: The bathyscaphe , which evolved from the diving bell . Most large submarines consist of a cylindrical body with hemispherical (or conical) ends and a vertical structure, usually located amidships, which houses communications and sensing devices as well as periscopes . In modern submarines, this structure is called the " sail " in American usage and "fin" in European usage. A feature of earlier designs

7155-470: The official language of France and Europe's aristocracy. France became rivals of the House of Habsburg during the Italian Wars , which would dictate much of their later foreign policy until the mid-18th century. French explorers claimed lands in the Americas, paving expansion of the French colonial empire . The rise of Protestantism led France to a civil war known as the French Wars of Religion . This forced Huguenots to flee to Protestant regions such as

7290-459: The 1970s France faced an economic crisis and allowed new immigrants (mostly from the Maghreb , in northwest Africa) to permanently settle in France with their families and acquire citizenship. It resulted in hundreds of thousands of Muslims living in subsidised public housing and suffering from high unemployment rates. The government had a policy of assimilation of immigrants, where they were expected to adhere to French values and norms. Since

7425-538: The 19th century, and submarines were adopted by several navies. They were first used widely during World War I (1914–1918), and are now used in many navies , large and small. Their military uses include: attacking enemy surface ships (merchant and military) or other submarines; aircraft carrier protection; blockade running ; nuclear deterrence ; stealth operations in denied areas when gathering intelligence and doing reconnaissance ; denying or influencing enemy movements; conventional land attacks (for example, launching

7560-402: The 200 years of the Crusades, in such a fashion that the Arabs referred to crusaders as Franj . French Crusaders imported French into the Levant , making Old French the base of the lingua franca ("Frankish language") of the Crusader states . The Albigensian Crusade was launched in 1209 to eliminate the heretical Cathars in the southwest of modern-day France. From the 11th century,

7695-420: The 4th century, a period of revival and prosperity. In 312, Emperor Constantine I converted to Christianity . Christians, who had been persecuted, increased. But from the 5th century, the Barbarian Invasions resumed. Teutonic tribes invaded the region, the Visigoths settling in the southwest, the Burgundians along the Rhine River Valley, and the Franks in the north. In Late antiquity , ancient Gaul

7830-438: The Alps on the France–Italy border , is the highest point in Western Europe. Although 60% of municipalities are classified as having seismic risks (though moderate). The coastlines offer contrasting landscapes: mountain ranges along the French Riviera , coastal cliffs such as the Côte d'Albâtre , and wide sandy plains in the Languedoc . Corsica lies off the Mediterranean coast. France has an extensive river system consisting of

7965-457: The Atlantic Ocean. Other water courses drain towards the Meuse and Rhine along the northeastern borders. France has 11,000,000 km (4,200,000 sq mi) of marine waters within three oceans under its jurisdiction, of which 97% are overseas. France was one of the first countries to create an environment ministry, in 1971. France is ranked 19th by carbon dioxide emissions due to the country's heavy investment in nuclear power following

8100-424: The British, when they reconsidered Fulton's submarine design. In 1850, Wilhelm Bauer 's Brandtaucher was built in Germany. It remains the oldest known surviving submarine in the world. In 1864, late in the American Civil War , the Confederate navy 's H. L. Hunley became the first military submarine to sink an enemy vessel, the Union sloop-of-war USS  Housatonic , using a gun-powder-filled keg on

8235-504: The Christian Gallo-Roman culture , and ancient Gaul was renamed Francia ("Land of the Franks"). The Germanic Franks adopted Romanic languages . Clovis made Paris his capital and established the Merovingian dynasty , but his kingdom would not survive his death. The Franks treated land as a private possession and divided it among their heirs, so four kingdoms emerged from that of Clovis: Paris, Orléans , Soissons , and Rheims . The last Merovingian kings lost power to their mayors of

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8370-401: The English clergyman and inventor George Garrett and the Swedish industrialist Thorsten Nordenfelt led to the first practical steam-powered submarines, armed with torpedoes and ready for military use. The first was Nordenfelt I , a 56-tonne, 19.5-metre (64 ft) vessel similar to Garrett's ill-fated Resurgam (1879), with a range of 240 kilometres (130 nmi; 150 mi), armed with

8505-405: The Franks is related to the English word frank ("free"): the latter stems from the Old French franc ("free, noble, sincere"), and ultimately from the Medieval Latin word francus ("free, exempt from service; freeman, Frank"), a generalisation of the tribal name that emerged as a Late Latin borrowing of the reconstructed Frankish endonym * Frank . It has been suggested that

8640-420: The Franks". Later kings expanded their directly possessed domaine royal to cover over half of modern France by the 15th century. Royal authority became more assertive, centred on a hierarchically conceived society distinguishing nobility , clergy, and commoners . The nobility played a prominent role in Crusades to restore Christian access to the Holy Land . French knights made up most reinforcements in

8775-402: The French government's longtime historical association with the Catholic Church , Charlemagne tried to revive the Western Roman Empire and its cultural grandeur. Charlemagne's son, Louis I kept the empire united, however in 843, it was divided between Louis' three sons, into East Francia , Middle Francia and West Francia . West Francia approximated the area occupied by modern France and

8910-550: The French steam and electric Narval employed the now typical double-hull design, with a pressure hull inside the outer shell. These 200-ton ships had a range of over 160 km (100 mi) underwater. The French submarine Aigrette in 1904 further improved the concept by using a diesel rather than a gasoline engine for surface power. Large numbers of these submarines were built, with seventy-six completed before 1914. The Royal Navy commissioned five Holland-class submarines from Vickers , Barrow-in-Furness , under licence from

9045-588: The German developments in submarine technology with the creation of the K-class submarines . However, these submarines were notoriously dangerous to operate due to their various design flaws and poor maneuverability. During World War II , Germany used submarines to devastating effect in the Battle of the Atlantic , where it attempted to cut Britain's supply routes by sinking more merchant ships than Britain could replace. These merchant ships were vital to supply Britain's population with food, industry with raw material, and armed forces with fuel and armaments. Although

9180-418: The Germans. The Polish defeat at the Battle of Lwów by the Germans and the Soviets disintegrated the efforts to clear a path to the Romanian Bridgehead. Nonetheless, many small groups of Polish soldiers crossed the border at night. As many as 120,000 Polish troops withdrew through the Romanian Bridgehead area to neutral Romania and Hungary . Most of those troops joined the newly-formed Polish Armed Forces in

9315-441: The Pacific War destroyed more Japanese shipping than all other weapons combined. This feat was considerably aided by the Imperial Japanese Navy's failure to provide adequate escort forces for the nation's merchant fleet. During World War II, 314 submarines served in the US Navy, of which nearly 260 were deployed to the Pacific. When the Japanese attacked Hawaii in December 1941, 111 boats were in commission; 203 submarines from

9450-407: The Pacific in World War II. Mine -laying submarines were developed in the early part of the 20th century. The facility was used in both World Wars. Submarines were also used for inserting and removing covert agents and military forces in special operations , for intelligence gathering, and to rescue aircrew during air attacks on islands, where the airmen would be told of safe places to crash-land so

9585-542: The Pyrenees and the Alps and the Jura, respectively, and to the east, the Rhine river. Metropolitan France includes various coastal islands, of which the largest is Corsica . Metropolitan France is situated mostly between latitudes 41° and 51° N , and longitudes 6° W and 10° E , on the western edge of Europe, and thus lies within the northern temperate zone. Its continental part covers about 1000 km from north to south and from east to west. Metropolitan France covers 551,500 square kilometres (212,935 sq mi),

9720-529: The Revolution. Some of the Enlightenment occurred in French intellectual circles, and scientific breakthroughs, such as the naming of oxygen (1778) and the first hot air balloon carrying passengers (1783), were achieved by French scientists. French explorers took part in the voyages of scientific exploration through maritime expeditions. Enlightenment philosophy, in which reason is advocated as

9855-618: The Romans in the Battle of the Allia , and besieged and ransomed Rome. This left Rome weakened, and the Gauls continued to harass the region until 345 BC when they entered into a peace treaty. But the Romans and the Gauls remained adversaries for centuries. Around 125 BC, the south of Gaul was conquered by the Romans, who called this region Provincia Nostra ("Our Province"), which evolved into Provence in French. Julius Caesar conquered

9990-639: The Russian submarine Som was fired upon by Japanese torpedo boats, but then withdrew. Military submarines first made a significant impact in World War I . Forces such as the U-boats of Germany saw action in the First Battle of the Atlantic , and were responsible for sinking RMS  Lusitania , which was sunk as a result of unrestricted submarine warfare and is often cited among the reasons for

10125-621: The U-boats had been updated in the interwar years, the major innovation was improved communications, encrypted using the Enigma cipher machine . This allowed for mass-attack naval tactics ( Rudeltaktik , commonly known as " wolfpack "), which ultimately ceased to be effective when the U-boat's Enigma was cracked . By the end of the war, almost 3,000 Allied ships (175 warships, 2,825 merchantmen) had been sunk by U-boats. Although successful early in

10260-751: The US, the Soviet Union (now Russia), the UK, and France have been powered by a nuclear reactor . In 1959–1960, the first ballistic missile submarines were put into service by both the United States ( George Washington class ) and the Soviet Union ( Golf class ) as part of the Cold War nuclear deterrent strategy. During the Cold War, the US and the Soviet Union maintained large submarine fleets that engaged in cat-and-mouse games. The Soviet Union lost at least four submarines during this period: K-129

10395-754: The West in France and the United Kingdom during 1939 and 1940. Until Germany attacked the Soviet Union during Operation Barbarossa and the United States joined the war, the Polish Army was one of the largest forces of the Allies. The Romanian government also received the treasury of the National Bank of Poland in 1939. Part of it, consisting of 1,261 crates containing 82,403 kg of gold,

10530-711: The area in 51 BC, leading to a distinct Gallo-Roman culture . In the Early Middle Ages , the Franks formed the Kingdom of Francia , which became the heartland of the Carolingian Empire . The Treaty of Verdun of 843 partitioned the empire, with West Francia evolving into the Kingdom of France . In the High Middle Ages , France was a powerful but decentralized feudal kingdom, but from

10665-659: The belief that the vessel was evacuating anti-Israeli militias. The ship was hit by two torpedoes, managed to run aground but eventually sank. There were 25 dead, including her captain. The Israeli Navy disclosed the incident in November 2018. Before and during World War II , the primary role of the submarine was anti-surface ship warfare. Submarines would attack either on the surface using deck guns, or submerged using torpedoes . They were particularly effective in sinking Allied transatlantic shipping in both World Wars, and in disrupting Japanese supply routes and naval operations in

10800-514: The climate became milder; from approximately 7,000 BC, this part of Western Europe entered the Neolithic era, and its inhabitants became sedentary . After demographic and agricultural development between the 4th and 3rd millennia BC, metallurgy appeared , initially working gold, copper and bronze , then later iron . France has numerous megalithic sites from the Neolithic, including

10935-822: The constitutional July Monarchy ; French troops began the conquest of Algeria . Unrest led to the French Revolution of 1848 and the end of the July Monarchy. The abolition of slavery and introduction of male universal suffrage was re-enacted in 1848. In 1852, president of the French Republic, Louis-Napoléon Bonaparte , Napoleon I's nephew, was proclaimed emperor of the Second Empire , as Napoleon III. He multiplied French interventions abroad, especially in Crimea , Mexico and Italy . Napoleon III

11070-498: The course of the defeat in the Algerian War . The current Fifth Republic was formed in 1958 by Charles de Gaulle . Algeria and most French colonies became independent in the 1960s, with the majority retaining close economic and military ties with France . France retains its centuries-long status as a global centre of art , science , and philosophy . It hosts the fourth-largest number of UNESCO World Heritage Sites and

11205-463: The craft. A mechanism was used to twist the water out of the bags and cause the boat to resurface. In 1749, the Gentlemen's Magazine reported that a similar design had initially been proposed by Giovanni Borelli in 1680. Further design improvement stagnated for over a century, until application of new technologies for propulsion and stability. The first military submersible was Turtle (1775),

11340-571: The designation USS ( United States Ship ) at the beginning of their names, such as USS  Alabama . In the Royal Navy, the designation HMS can refer to "His Majesty's Ship" or "His Majesty's Submarine", though the latter is sometimes rendered "HMS/m" and submarines are generally referred to as boats rather than ships . According to a report in Opusculum Taisnieri published in 1562: Two Greeks submerged and surfaced in

11475-441: The development of the homing torpedo, better sonar systems, and nuclear propulsion , submarines also became able to hunt each other effectively. The development of submarine-launched ballistic missile and submarine-launched cruise missiles gave submarines a substantial and long-ranged ability to attack both land and sea targets with a variety of weapons ranging from cluster bombs to nuclear weapons . The primary defense of

11610-526: The empire, leaving England and Aquitaine to the Plantagenets. Charles IV the Fair died without an heir in 1328. The crown passed to Philip of Valois , rather than Edward of Plantagenet, who became Edward III of England . During the reign of Philip, the monarchy reached the height of its medieval power. However Philip's seat on the throne was contested by Edward in 1337, and England and France entered

11745-677: The enemyes by the Grace of God and worke of expert Craftsmen I hope to perform." It is unclear whether he carried out his idea. Jerónimo de Ayanz y Beaumont (1553–1613) created detailed designs for two types of air-renovated submersible vehicles. They were equipped with oars, autonomous floating snorkels worked by inner pumps, portholes and gloves used for the crew to manipulate underwater objects. Ayanaz planned to use them for warfare, using them to approach enemy ships undetected and set up timed gunpowder charges on their hulls. The first submersible of whose construction there exists reliable information

11880-613: The ensuing uprising of European monarchies against his rule, Napoleon was defeated. About a million Frenchmen died during the Napoleonic Wars . After his brief return from exile, Napoleon was finally defeated in 1815 at the Battle of Waterloo , and the Bourbon monarchy was restored with new constitutional limitations. The discredited Bourbon dynasty was overthrown by the July Revolution of 1830, which established

12015-402: The entry of the United States into the war. At the outbreak of the war, Germany had only twenty submarines available for combat, although these included vessels of the diesel-engined U-19 class, which had a sufficient range of 5,000 miles (8,000 km) and speed of 8 knots (15 km/h) to allow them to operate effectively around the entire British coast., By contrast, the Royal Navy had

12150-550: The first practical self-propelled or "locomotive" torpedo. The spar torpedo that had been developed earlier by the Confederate States Navy was considered to be impracticable, as it was believed to have sunk both its intended target, and H. L. Hunley , the submarine that deployed it. The Irish inventor John Philip Holland built a model submarine in 1876 and in 1878 demonstrated the Holland I prototype. This

12285-594: The forefront of the development of a supranational European Union , notably by signing the Maastricht Treaty in 1992, establishing the eurozone in 1999 and signing the Treaty of Lisbon in 2007. France has fully reintegrated into NATO and since participated in most NATO-sponsored wars. Since the 19th century, France has received many immigrants , often male foreign workers from European Catholic countries who generally returned home when not employed. During

12420-976: The four major rivers Seine , the Loire , the Garonne , the Rhône and their tributaries, whose combined catchment includes over 62% of the metropolitan territory. The Rhône divides the Massif Central from the Alps and flows into the Mediterranean Sea at the Camargue . The Garonne meets the Dordogne just after Bordeaux, forming the Gironde estuary , the largest estuary in Western Europe which after approximately 100 kilometres (62 mi) empties into

12555-521: The highest submerged speeds during World War II ( I-201 -class submarines) and submarines that could carry multiple aircraft ( I-400 -class submarines). They were also equipped with one of the most advanced torpedoes of the conflict, the oxygen-propelled Type 95 . Nevertheless, despite their technical prowess, Japan chose to use its submarines for fleet warfare, and consequently were relatively unsuccessful, as warships were fast, maneuverable and well-defended compared to merchant ships. The submarine force

12690-479: The largest among European Union members. France's total land area, with its overseas departments and territories (excluding Adélie Land ), is 643,801 km (248,573 sq mi), 0.45% of the total land area on Earth. France possesses a wide variety of landscapes, from coastal plains in the north and west to mountain ranges of the Alps in the southeast, the Massif Central in the south-central and Pyrenees in

12825-466: The meaning "free" was adopted because, after the conquest of Gaul , only Franks were free of taxation, or more generally because they had the status of freemen in contrast to servants or slaves. The etymology of *Frank is uncertain. It is traditionally derived from the Proto-Germanic word * frankōn , which translates as "javelin" or "lance" (the throwing axe of the Franks was known as

12960-652: The mid-14th to the mid-15th centuries, France was plunged into a dynastic conflict with England known as the Hundred Years' War . In the 16th century, the French Renaissance saw culture flourish and a French colonial empire rise. Internally, France was dominated by the conflict with the House of Habsburg and the French Wars of Religion between Catholics and Huguenots . France was successful in

13095-435: The missile with a nuclear warhead . Tunny and its sister boat, Barbero , were the United States' first nuclear deterrent patrol submarines. In the 1950s, nuclear power partially replaced diesel–electric propulsion. Equipment was also developed to extract oxygen from sea water. These two innovations gave submarines the ability to remain submerged for weeks or months. Most of the naval submarines built since that time in

13230-647: The most-used language in diplomacy, science, and literature until the 20th century. France took control of territories in the Americas, Africa and Asia. In 1685, Louis XIV revoked the Edict of Nantes , forcing thousands of Huguenots into exile and published the Code Noir providing the legal framework for slavery and expelling Jews from French colonies. Under the wars of Louis XV (r. 1715–1774), France lost New France and most Indian possessions after its defeat in

13365-458: The newly established kingdoms. These victories led to the worldwide expansion of French revolutionary ideals and reforms, such as the metric system , Napoleonic Code and Declaration of the Rights of Man. In 1812 Napoleon attacked Russia , reaching Moscow. Thereafter his army disintegrated through supply problems, disease, Russian attacks, and finally winter. After this catastrophic campaign and

13500-507: The off-and-on Hundred Years' War . Boundaries changed, but landholdings inside France by English Kings remained extensive for decades. With charismatic leaders, such as Joan of Arc , French counterattacks won back most English continental territories. France was struck by the Black Death , from which half of the 17 million population died. The French Renaissance saw cultural development and standardisation of French, which became

13635-631: The palace (head of household). One mayor of the palace, Charles Martel , defeated an Umayyad invasion of Gaul at the Battle of Tours (732). His son, Pepin the Short , seized the crown of Francia from the weakened Merovingians and founded the Carolingian dynasty . Pepin's son, Charlemagne , reunited the Frankish kingdoms and built an empire across Western and Central Europe . Proclaimed Holy Roman Emperor by Pope Leo III and thus establishing

13770-405: The preceding years. More submersibles than true submarines, U-boats operated primarily on the surface using regular engines, submerging occasionally to attack under battery power. They were roughly triangular in cross-section, with a distinct keel to control rolling while surfaced, and a distinct bow. During World War I more than 5,000 Allied ships were sunk by U-boats. The British responded to

13905-572: The primary source of legitimacy , undermined the power of and support for the monarchy and was a factor in the Revolution. The French Revolution was a period of political and societal change that began with the Estates General of 1789 , and ended with the coup of 18 Brumaire in 1799 and the formation of the French Consulate . Many of its ideas are fundamental principles of liberal democracy , while its values and institutions remain central to modern political discourse. Its causes were

14040-534: The remainder of Gaul and overcame a revolt by Gallic chieftain Vercingetorix in 52 BC. Gaul was divided by Augustus into provinces and many cities were founded during the Gallo-Roman period , including Lugdunum (present-day Lyon ), the capital of the Gauls. In 250–290 AD, Roman Gaul suffered a crisis with its fortified borders attacked by barbarians . The situation improved in the first half of

14175-454: The revolt was a political failure (the Gaullist party emerged stronger than before) it announced a split between the French and de Gaulle, who resigned. In the post-Gaullist era, France remained one of the most developed economies in the world but faced crises that resulted in high unemployment rates and increasing public debt. In the late 20th and early 21st centuries, France has been at

14310-749: The river Tagus near the City of Toledo several times in the presence of The Holy Roman Emperor Charles V , without getting wet and with the flame they carried in their hands still alight. In 1578, the English mathematician William Bourne recorded in his book Inventions or Devises one of the first plans for an underwater navigation vehicle. A few years later the Scottish mathematician and theologian John Napier wrote in his Secret Inventions (1596) that "These inventions besides devises of sayling under water with divers, other devises and strategems for harming of

14445-549: The second-largest behind the British Empire . Including metropolitan France, the total area reached almost 13 million square kilometres in the 1920s and 1930s, 9% of the world's land. Known as the Belle Époque , the turn of the century was characterised by optimism, regional peace, economic prosperity and technological, scientific and cultural innovations. In 1905, state secularism was officially established . France

14580-631: The sinking the Argentine Navy recognized that they had no effective defense against submarine attack, and the Argentine surface fleet withdrew to port for the remainder of the war. An Argentine submarine remained at sea, however. Although the majority of the world's submarines are military, there are some civilian submarines, which are used for tourism, exploration, oil and gas platform inspections, and pipeline surveys. Some are also used in illegal activities. The Submarine Voyage ride opened at Disneyland in 1959, but although it ran under water it

14715-472: The southwest. Due to its numerous overseas departments and territories scattered across the planet, France possesses the second-largest exclusive economic zone (EEZ) in the world, covering 11,035,000 km (4,261,000 sq mi). Its EEZ covers approximately 8% of the total surface of all the EEZs of the world. Metropolitan France has a wide variety of topographical sets and natural landscapes. During

14850-664: The state and reinforced royal power. He destroyed castles of defiant lords and denounced the use of private armies. By the end of the 1620s, Richelieu established "the royal monopoly of force". France fought in the Thirty Years' War , supporting the Protestant side against the Habsburgs. From the 16th to the 19th century, France was responsible for about 10% of the transatlantic slave trade . During Louis XIV 's minority, trouble known as The Fronde occurred. This rebellion

14985-476: The submarines could rescue them. Submarines could carry cargo through hostile waters or act as supply vessels for other submarines. Submarines could usually locate and attack other submarines only on the surface, although HMS  Venturer managed to sink U-864 with a four torpedo spread while both were submerged. The British developed a specialized anti-submarine submarine in WWI, the R class . After WWII, with

15120-577: The supplies through Romania. In adherence with the secret protocol of the Molotov–Ribbentrop Pact , which provided for the partition of Poland between Nazi Germany and the Soviet Union, the Soviets invaded Poland from the east during the early hours of 17 September and violated their non-aggression pact with Poland . However, the French, despite their promises, had not begun any significant offensive against Germany , which made it impossible for

15255-530: The unoccupied territory. Free France , the government-in-exile led by  Charles de Gaulle , was set up in London. From 1942 to 1944, about 160,000 French citizens, including around 75,000 Jews , were deported to death and concentration camps . On 6 June 1944, the Allies invaded Normandy , and in August they invaded Provence . The Allies and French Resistance emerged victorious, and French sovereignty

15390-466: The war, Germany's U-boat fleet suffered heavy casualties, losing 793 U-boats and about 28,000 submariners out of 41,000, a casualty rate of about 70%. The Imperial Japanese Navy operated the most varied fleet of submarines of any navy, including Kaiten crewed torpedoes, midget submarines ( Type A Ko-hyoteki and Kairyu classes ), medium-range submarines, purpose-built supply submarines and long-range fleet submarines . They also had submarines with

15525-668: The world . Metropolitan France shares borders with Belgium and Luxembourg to the north, Germany to the northeast, Switzerland to the east, Italy and Monaco to the southeast, Andorra and Spain to the south, and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and

15660-464: Was invaded by Germany and defended by Great Britain at the start of World War I in August 1914. A rich industrial area in the north was occupied. France and the Allies emerged victorious against the Central Powers at tremendous human cost. It left 1.4 million French soldiers dead, 4% of its population. Interwar was marked by intense international tensions and social reforms introduced by

15795-521: Was a founding member of NATO and attempted to regain control of French Indochina , but was defeated by the Viet Minh in 1954. France faced another anti-colonialist conflict in Algeria , then part of France and home to over one million European settlers ( Pied-Noir ). The French systematically used torture and repression, including extrajudicial killings to keep control. This conflict nearly led to

15930-633: Was built at the Chilean government's request by Karl Flach , a German engineer and immigrant. It was the fifth submarine built in the world and, along with a second submarine, was intended to defend the port of Valparaiso against attack by the Spanish Navy during the Chincha Islands War . Submarines could not be put into widespread or routine service use by navies until suitable engines were developed. The era from 1863 to 1904 marked

16065-440: Was designed and built in 1620 by Cornelis Drebbel , a Dutchman in the service of James I of England . It was propelled by means of oars. By the mid-18th century, over a dozen patents for submarines/submersible boats had been granted in England. In 1747, Nathaniel Symons patented and built the first known working example of the use of a ballast tank for submersion. His design used leather bags that could fill with water to submerge

16200-451: Was divided into Germanic kingdoms and a remaining Gallo-Roman territory. Celtic Britons , fleeing the Anglo-Saxon settlement of Britain , settled in west Armorica ; the Armorican peninsula was renamed Brittany and Celtic culture was revived. The first leader to unite all Franks was Clovis I , who began his reign as king of the Salian Franks in 481, routing the last forces of the Roman governors in 486. Clovis said he would be baptised

16335-479: Was driven by feudal lords and sovereign courts as a reaction to the royal absolute power . The monarchy reached its peak during the 17th century and reign of Louis XIV. By turning lords into courtiers at the Palace of Versailles , his command of the military went unchallenged. The "Sun King" made France the leading European power. France became the most populous European country and had tremendous influence over European politics, economy, and culture. French became

16470-405: Was executed in January 1793. After another revolt in June 1793 , the constitution was suspended and power passed from the National Convention to the Committee of Public Safety . About 16,000 people were executed in a Reign of Terror , which ended in July 1794 . Weakened by external threats and internal opposition, the Republic was replaced in 1795 by the Directory . Four years later in 1799,

16605-480: Was followed by a number of unsuccessful designs. In 1896, he designed the Holland Type VI submarine, which used internal combustion engine power on the surface and electric battery power underwater. Launched on 17 May 1897 at Navy Lt. Lewis Nixon 's Crescent Shipyard in Elizabeth, New Jersey , Holland VI was purchased by the United States Navy on 11 April 1900, becoming the Navy's first commissioned submarine, christened USS  Holland . Discussions between

16740-414: Was its precursor. During the 9th and 10th centuries, threatened by Viking invasions , France became a decentralised state: the nobility's titles and lands became hereditary, and authority of the king became more religious than secular, and so was less effective and challenged by noblemen. Thus was established feudalism in France. Some king's vassals grew so powerful they posed a threat to the king. After

16875-447: Was loaded aboard a commercial ship in the port of Constanța and transported to Western Europe . The transport was escorted by ships of the Romanian Navy to prevent its interception by Soviet submarines in the Black Sea . The second part of the treasury was deposited in the National Bank of Romania and was returned to Poland on 17 September 1947. France – in Europe  (green & dark grey) – in

17010-565: Was lost in 1968 (a part of which the CIA retrieved from the ocean floor with the Howard Hughes -designed ship Glomar Explorer ), K-8 in 1970, K-219 in 1986, and Komsomolets in 1989 (which held a depth record among military submarines—1,000 m (3,300 ft)). Many other Soviet subs, such as K-19 (the first Soviet nuclear submarine, and the first Soviet sub to reach the North Pole) were badly damaged by fire or radiation leaks. The US lost two nuclear submarines during this time: USS  Thresher due to equipment failure during

17145-443: Was not a true submarine, as it ran on tracks and was open to the atmosphere. The first tourist submarine was Auguste Piccard , which went into service in 1964 at Expo64 . By 1997, there were 45 tourist submarines operating around the world. Submarines with a crush depth in the range of 400–500 feet (120–150 m) are operated in several areas worldwide, typically with bottom depths around 100 to 120 feet (30 to 37 m), with

17280-453: Was restored with the Provisional Government of the French Republic (GPRF). This interim government, established by de Gaulle, continued to wage war against Germany and to purge collaborators from office . It made important reforms e.g. suffrage extended to women and the creation of a social security system. A new constitution resulted in the Fourth Republic (1946–1958), which saw strong economic growth ( les Trente Glorieuses ). France

17415-608: Was set to impose a carbon tax in 2009; however, the plan was abandoned due to fears of burdening French businesses. Forests account for 31 per cent of France's land area—the fourth-highest proportion in Europe—representing an increase of 7 per cent since 1990. French forests are some of the most diverse in Europe, comprising more than 140 species of trees. France had a 2018 Forest Landscape Integrity Index mean score of 4.52/10, ranking it 123rd globally. There are nine national parks and 46 natural parks in France. A regional nature park (French: parc naturel régional or PNR)

17550-425: Was still valid by 1939. However, the Polish government decided that it would be much more helpful to have a safe haven in Romania and the safe port of Constanța that could accept as many Allied merchant ships as would be required to keep Poland fighting. Most of the Polish Navy and merchant marine had been evacuated prior to 1 September (see Peking Plan ) and would operate from French and British ports and deliver

17685-488: Was the " conning tower ": a separate pressure hull above the main body of the boat that enabled the use of shorter periscopes. There is a propeller (or pump jet) at the rear, and various hydrodynamic control fins. Smaller, deep-diving, and specialty submarines may deviate significantly from this traditional design. Submarines dive and resurface by using diving planes and by changing the amount of water and air in ballast tanks to affect their buoyancy . Submarines encompass

17820-437: Was the French Plongeur ( Diver ), launched in 1863, which used compressed air at 1,200  kPa (180  psi ). Narcís Monturiol designed the first air-independent and combustion -powered submarine, Ictíneo II , which was launched in Barcelona , Spain in 1864. The submarine became feasible as potential weapon with the development of the Whitehead torpedo , designed in 1866 by British engineer Robert Whitehead ,

17955-449: Was the first submarine combat loss since World War II. In 1982 during the Falklands War , the Argentine cruiser General Belgrano was sunk by the British submarine HMS  Conqueror , the first sinking by a nuclear-powered submarine in war. Some weeks later, on 16 June, during the Lebanon War , an unnamed Israeli submarine torpedoed and sank the Lebanese coaster Transit , which was carrying 56 Palestinian refugees to Cyprus , in

18090-413: Was the most effective anti-ship weapon in the American arsenal. Submarines, though only about 2 percent of the U.S. Navy, destroyed over 30 percent of the Japanese Navy, including 8 aircraft carriers, 1 battleship and 11 cruisers. US submarines also destroyed over 60 percent of the Japanese merchant fleet, crippling Japan's ability to supply its military forces and industrial war effort. Allied submarines in

18225-404: Was unseated following defeat in the Franco-Prussian War of 1870, and his regime replaced by the Third Republic . By 1875, the French conquest of Algeria was complete, with approximately 825,000 Algerians killed from famine, disease, and violence. France had colonial possessions since the beginning of the 17th century, but in the 19th and 20th centuries its empire extended greatly and became

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