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Semtex

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Semtex is a general-purpose plastic explosive containing RDX and PETN . It is used in commercial blasting, demolition , and in certain military applications.

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72-490: Semtex was developed and manufactured in Czechoslovakia , originally under the name B 1 and then under the "Semtex" designation since 1964, labeled as SEMTEX 1A , since 1967 as SEMTEX H , and since 1987 as SEMTEX 10 . Originally developed for Czechoslovak military use and export, Semtex eventually became popular with armed groups and insurgents because, prior to the 2000s, it was extremely difficult to detect, as in

144-478: A detection taggant added to produce a distinctive vapor signature to aid detection. First, ethylene glycol dinitrate was used, but was later switched to 2,3-dimethyl-2,3-dinitrobutane (DMDNB) or p -mononitrotoluene (1-methyl-4- nitrobenzene ), which is used currently. According to the manufacturer, the taggant agent was voluntarily being added by 1991, years before the protocol became compulsory. Batches of Semtex made before 1990, however, are untagged, though it

216-540: A Boeing 747 over Lockerbie, Scotland killing all 259 passengers and crew aboard the aircraft and 11 bystanders on the ground. Sales declined after Semtex became closely associated with terrorist attacks. Rules governing the explosive's export were progressively tightened over the years, and since 2002 all of Explosia's trading has been controlled by a government ministry. As of 2001, only approximately 10 tons of Semtex were produced annually, almost all for domestic use. Also in response to international agreements, Semtex has

288-582: A Czech entrepreneur and visionary, outlined his ideas in the publication "Budujme stát pro 40 milionů lidí", where he described the future motorway system. Construction of the first motorways in Czechoslovakia begun in 1939, nevertheless, they were stopped after German occupation during World War II . Jesen%C3%ADk Jeseník ( Czech pronunciation: [ˈjɛsɛɲiːk] ; until 1947 Frývaldov ( Czech pronunciation: [ˈfriːvaldof] ); German : Freiwaldau , Polish : Frywałdów )

360-538: A ban on professional employment, the refusal of higher education for the dissidents' children, police harassment and prison. During the 1980s, Czechoslovakia became one of the most tightly controlled Communist regimes in the Warsaw Pact in resistance to the mitigation of controls notified by Soviet president Mikhail Gorbachev . In 1989, the Velvet Revolution restored democracy. This occurred around

432-403: A castle had to stand here. In the 14th century Freiwaldau developed as a centre of iron one processing. The first mention of the iron ore processing is from 1326, when thirteen hammer mills were already operating here. However, mining ended already at the end of the 14th century. In the second half of the 15th century, gold and silver were mined here. From 1378 to 1463, the town was owned by

504-627: A chance for many of their compatriots to participate in communal life before independence. Palacký supported Austro-Slavism and worked for a reorganized federal Austrian Empire , which would protect the Slavic speaking peoples of Central Europe against Russian and German threats. An advocate of democratic reform and Czech autonomy within Austria-Hungary, Masaryk was elected twice to the Reichsrat (Austrian Parliament), from 1891 to 1893 for

576-467: A major factor in the 1980s. Slightly after the foundation of Czechoslovakia in 1918, there was a lack of essential infrastructure in many areas – paved roads , railways , bridges , etc. Massive improvement in the following years enabled Czechoslovakia to develop its industry. Prague 's civil airport in Ruzyně became one of the most modern terminals in the world when it was finished in 1937. Tomáš Baťa ,

648-511: A political monopoly was held by the Communist Party of Czechoslovakia (KSČ). The leader of the KSČ was de facto the most powerful person in the country during this period. Gustáv Husák was elected first secretary of the KSČ in 1969 (changed to general secretary in 1971) and president of Czechoslovakia in 1975. Other parties and organizations existed but functioned in subordinate roles to

720-828: A result of the Munich Agreement . It was administered as a part of Reichsgau Sudetenland . During World War II , the German occupiers operated several forced labour subcamps of the Stalag VIII-B/344 prisoner-of-war camp in the town. The town was restored to Czechoslovakia after the defeat of Nazi Germany in World War II in 1945. The German population was expelled according to the Potsdam Agreement and Beneš Decrees in 1945. In 1950, Bukovice and Dětřichov were joined to Jeseník. The town

792-648: A threat to German rule. Just like Jews, Poles, Serbs, and several other nations, Czechs were considered to be untermenschen by the Nazi state. In 1940, in a secret Nazi plan for the Germanization of the Protectorate of Bohemia and Moravia it was declared that those considered to be of racially Mongoloid origin and the Czech intelligentsia were not to be Germanized. The deportation of Jews to concentration camps

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864-777: A unified Czechoslovakia was restored after World War II (after the country had been divided during the war), the conflict between the Czechs and the Slovaks surfaced again. The governments of Czechoslovakia and other Central European nations deported ethnic Germans, reducing the presence of minorities in the nation. Most of the Jews had been killed during the war by the Nazis. Ethnicities of Czechoslovakia in 1921 Ethnicities of Czechoslovakia in 1930 *Jews identified themselves as Germans or Hungarians (and Jews only by religion not ethnicity),

936-520: Is a museum of his life and work, administered by the regional museum. The Polish Monument is a valuable sculpture from the 1890s documenting the importance of the local spa. At its top is a bronze crowned eagle with outstretched wings on a sphere. During the renovation in 2005, notes were discovered in its foundation, which contained a protest against the Partitions of Poland . Jeseník is twinned with: Jeseník also cooperates with Prague 1 in

1008-627: Is a spa town in the Olomouc Region of the Czech Republic . It has about 11,000 inhabitants. The villages of Bukovice and Dětřichov are administrative parts of Jeseník. The original name of Jeseník was Freiwaldau/Frývaldov, deriving from German frei vom Walde , meaning "free from the woods". The name first appeared in Latin documents under the name Vriwald and later as Vrowald, Vrienwalde and Freynwalde . The Czech name of Frývaldov

1080-454: Is from 1267. It was probably founded during the colonization of the territory by the Bishops of Wrocław , who acquired the area in 1199. It became a town between 1284 and 1295, thanks to the development caused by its strategic location on a trade route from Moravia to Silesia and on the confluence of two rivers, and thanks to the iron ore deposits in the surroundings. In 1284 at the latest,

1152-400: Is intended for explosion hardening . Semtex was invented in the late 1950s by Stanislav Brebera and Radim Fukátko, chemists at VCHZ Synthesia, Czechoslovakia (now Czech Republic ). The explosive is named after Semtín, a suburb of Pardubice where the mixture was first manufactured starting in 1964. The plant was later renamed to become Explosia a.s. , a subsidiary of Synthesia. Semtex

1224-426: Is not known whether there are still major stocks of such old batches of Semtex. According to the manufacturer, even this untagged Semtex can now be detected. The shelf life of Semtex was reduced from ten years before the 1990s to five years now. Explosia states that there is no compulsory tagging allowing reliable post-detonation detection of a certain plastic explosive (such as incorporating a unique metallic code into

1296-498: Is poor in historical monuments. The oldest and most important monument in the town is the Jeseník Water Fortress. This Gothic castle from the 13th century was first documented in 1374. Since 1989, it has been owned by the state and houses the regional museum with permanent exhibitions on regional history, Northern Moravia witch trials , and geomorphology. The town hall dates from 1710. It has Renaissance core from

1368-728: The Danube River basin. The weather is mild winters and mild summers. Influenced by the Atlantic Ocean from the west, the Baltic Sea from the north, and Mediterranean Sea from the south. There is no continental weather. The area was part of the Austro-Hungarian Empire until it collapsed at the end of World War I . The new state was founded by Tomáš Garrigue Masaryk , who served as its first president from 14 November 1918 to 14 December 1935. He

1440-537: The First Silesian War . Due to the loss of Silesian markets as the main customer of production, linen got into a crisis and the town lost its mining privileges. New economic development occurred in the 19th century, when industrialization began and new factories and enterprises were established. Significant and world-famous was the Regenhart u. Rayman textile factory, established in 1822. The opening of

1512-600: The NSDAP in the December 1938 elections. Almost every decree explicitly stated that the sanctions did not apply to antifascists. Some 250,000 Germans, many married to Czechs, some antifascists, and also those required for the post-war reconstruction of the country, remained in Czechoslovakia. The Beneš Decrees still cause controversy among nationalist groups in the Czech Republic, Germany, Austria and Hungary. Following

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1584-711: The Sudetenland . On 29 September 1938, Britain and France ceded control in the Appeasement at the Munich Conference ; France ignored the military alliance it had with Czechoslovakia. During October 1938, Nazi Germany occupied the Sudetenland border region, effectively crippling Czechoslovak defences. The First Vienna Award assigned a strip of southern Slovakia and Carpathian Ruthenia to Hungary. Poland occupied Zaolzie, an area whose population

1656-597: The Warsaw Pact of 1955. A period of political liberalization in 1968, the Prague Spring , ended when the Soviet Union, assisted by other Warsaw Pact countries, invaded Czechoslovakia . In 1989, as Marxist–Leninist governments and communism were ending all over Central and Eastern Europe , Czechoslovaks peacefully deposed their communist government during the Velvet Revolution , which began on 17 November 1989 and ended 11 days later on 28 November when all of

1728-790: The Young Czech Party , and from 1907 to 1914 for the Czech Realist Party , which he had founded in 1889 with Karel Kramář and Josef Kaizl . During World War I a number of Czechs and Slovaks, the Czechoslovak Legions , fought with the Allies in France and Italy, while large numbers deserted to Russia in exchange for its support for the independence of Czechoslovakia from the Austrian Empire. With

1800-680: The autonomous regions of Slovakia and Subcarpathian Ruthenia. Annexed by Hungary (1939–1945). ČSR; declared a "people's democracy" (without a formal name change) under the Ninth-of-May Constitution following the 1948 coup . ČSSR; from 1969, after the Prague Spring , consisted of the Czech Socialist Republic (ČSR) and Slovak Socialist Republic (SSR). Oblast of the Ukrainian SSR . Oblast of Ukraine . After World War II,

1872-911: The 1946 parliamentary election, the Communist Party of Czechoslovakia was the winner in the Czech lands , and the Democratic Party won in Slovakia. In February 1948 the Communists seized power . Although they would maintain the fiction of political pluralism through the existence of the National Front , except for a short period in the late 1960s (the Prague Spring ) the country had no liberal democracy . Since citizens lacked significant electoral methods of registering protest against government policies, periodically there were street protests that became violent. For example, there were riots in

1944-522: The Austrian administration census of 1910 the town had 6,859 inhabitants, with 6,588 (99.5%) were speaking German, 16 Czech and 13 Polish. Jews were not allowed to declare Yiddish , most of them thus declared German. Most populous religious groups were Roman Catholics with 6,552 (95.5%), followed by Protestants with 208 (3%) and the Jews with 83 (1.2%). In 1938, Jeseník was ceded to Nazi Germany as

2016-893: The Bělá River, a tributary of the Eastern Neisse , with the Staříč Stream. The valley of these watercourses belongs to the Zlatohorská Highlands . The southern part of the municipal territory is situated in the Hrubý Jeseník mountain range. The northern part extends to the Golden Mountains . The highest point of the municipal territory is the Velké Bradlo mountain at 1,050 m (3,440 ft) above sea level. The first written mention of Jeseník

2088-607: The Czech intelligentsia; the intellectual elites and middle class made up a considerable number of the 200,000 people who passed through concentration camps and the 250,000 who died during German occupation. Under Generalplan Ost , it was assumed that around 50% of Czechs would be fit for Germanization . The Czech intellectual elites were to be removed not only from Czech territories but from Europe completely. The authors of Generalplan Ost believed it would be best if they emigrated overseas, as even in Siberia they were considered

2160-629: The Czechs of the Protectorate Bohemia and Moravia, German occupation was a period of brutal oppression. Czech losses resulting from political persecution and deaths in concentration camps totaled between 36,000 and 55,000. The Jewish populations of Bohemia and Moravia (118,000 according to the 1930 census) were virtually annihilated. Many Jews emigrated after 1939; more than 70,000 were killed; 8,000 survived at Terezín. Several thousand Jews managed to live in freedom or in hiding throughout

2232-483: The German war effort was accelerated. Under the authority of Karl Hermann Frank , German minister of state for Bohemia and Moravia, some 350,000 Czech laborers were dispatched to the Reich. Within the protectorate, all non-war-related industry was prohibited. Most of the Czech population obeyed quiescently up until the final months preceding the end of the war, while thousands were involved in the resistance movement . For

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2304-584: The Gulf War with a small force of 200 troops under the command of the U.S.-led coalition. In 1992, because of growing nationalist tensions in the government, Czechoslovakia was peacefully dissolved by parliament. On 31 December 1992, it formally separated into two independent countries, the Czech Republic and the Slovak Republic . ČSR; boundaries and government established by the 1920 constitution . Annexed by Nazi Germany . ČSR; included

2376-751: The KSČ. All political parties, as well as numerous mass organizations, were grouped under umbrella of the National Front . Human rights activists and religious activists were severely repressed. Czechoslovakia had the following constitutions during its history (1918–1992): In the 1930s, the nation formed a military alliance with France, which collapsed in the Munich Agreement of 1938. After World War II , an active participant in Council for Mutual Economic Assistance ( Comecon ), Warsaw Pact , United Nations and its specialized agencies; signatory of conference on Security and Cooperation in Europe . Before World War II,

2448-710: The Mušín family. In the following decades it often changed owners. In 1506, the flourishing town was purchased by the Swabian Fugger dynasty who resumed mining activity. In the same year, the town obtained the Bergregal privileges. The iron ore deposits were soon exhausted or have become unprofitable, and the Fuggers sold the town back to the Wrocław bishops in 1547. The town developed crafts and gained many guild privileges at

2520-604: The Slovaks, who were hostile to the more numerous Czechs, weakened the country in the late 1930s. Slovakia became autonomous in the fall of 1938, and by mid-1939, Slovakia had become independent, with the First Slovak Republic set up as a satellite state of Nazi Germany and the far-right Slovak People's Party in power . After 1933, Czechoslovakia remained the only democracy in central and eastern Europe. In September 1938, Adolf Hitler demanded control of

2592-502: The Soviet Union, gradually put the brakes on their earlier liberal policies. Meanwhile, one plank of the reform program had been carried out: in 1968–69, Czechoslovakia was turned into a federation of the Czech Socialist Republic and Slovak Socialist Republic . The theory was that under the federation, social and economic inequities between the Czech and Slovak halves of the state would be largely eliminated. A number of ministries, such as education, now became two formally equal bodies in

2664-418: The case of Pan Am Flight 103 . The composition of the two most common variants differ according to their use. The 1A (or 10 ) variant is used for mining , and is based mostly on crystalline PETN . The versions 1AP and 2P are formed as hexagonal booster charges ; a special assembly of PETN and wax inside the charge assures high reliability for detonating cord or detonator . The H (or SE ) variant

2736-503: The economy was about the fourth in all industrial countries in Europe. The state was based on strong economy, manufacturing cars ( Škoda , Tatra ), trams, aircraft ( Aero , Avia ), ships, ship engines ( Škoda ), cannons, shoes ( Baťa ), turbines, guns ( Zbrojovka Brno ). It was the industrial workshop for the Austro-Hungarian empire. The Slovak lands relied more heavily on agriculture than the Czech lands. After World War II,

2808-484: The economy was centrally planned, with command links controlled by the communist party, similarly to the Soviet Union . The large metallurgical industry was dependent on imports of iron and non-ferrous ores. After World War II, the country was short of energy, relying on imported crude oil and natural gas from the Soviet Union, domestic brown coal , and nuclear and hydroelectric energy . Energy constraints were

2880-553: The expulsion of the ethnic German population from Czechoslovakia, parts of the former Sudetenland , especially around Krnov and the surrounding villages of the Jesenik mountain region in northeastern Czechoslovakia, were settled in 1949 by Communist refugees from Northern Greece who had left their homeland as a result of the Greek Civil War . These Greeks made up a large proportion of the town and region's population until

2952-589: The late 1980s/early 1990s. Although defined as "Greeks", the Greek Communist community of Krnov and the Jeseniky region actually consisted of an ethnically diverse population, including Greek Macedonians , Macedonians , Vlachs , Pontic Greeks and Turkish speaking Urums or Caucasus Greeks . Carpathian Ruthenia (Podkarpatská Rus) was occupied by (and in June 1945 formally ceded to) the Soviet Union. In

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3024-589: The manufacturer, Explosia, he was not a member of the team that developed the explosive in the 1960s. According to the producer's 2017 catalog, several variants of Semtex are offered: Semtex 1A, Semtex 1H, Semtex 10, Semtex 10-SE, Semtex S 30, Semtex C-4, Semtex PW 4, and Semtex 90. Czechoslovakia Czechoslovakia ( / ˌ tʃ ɛ k oʊ s l oʊ ˈ v æ k i . ə , ˈ tʃ ɛ k ə -, - s l ə -, - ˈ v ɑː -/ CHEK -oh-sloh- VAK -ee-ə, CHEK -ə-, -⁠slə-, -⁠ VAH - ; Czech and Slovak : Československo , Česko-Slovensko )

3096-501: The mass of the explosive), so Semtex is not tagged in this way. On 25 May 1997, Bohumil Šole, a scientist who claimed to have been involved with inventing Semtex, committed suicide at a spa in Jeseník by blowing himself up with explosives. Šole, 63, was being treated there for psychological problems. It was unclear what explosives were used. Twenty other people were hurt in the explosion, while six were seriously injured. According to

3168-547: The most industrialized regions of the former Austria-Hungary. The new country was a multi-ethnic state, with Czechs and Slovaks as constituent peoples . The population consisted of Czechs (51%), Slovaks (16%), Germans (22%), Hungarians (5%) and Rusyns (4%). Many of the Germans, Hungarians, Ruthenians and Poles and some Slovaks, felt oppressed because the political elite did not generally allow political autonomy for minority ethnic groups. This policy led to unrest among

3240-564: The non-Czech population, particularly in German-speaking Sudetenland , which initially had proclaimed itself part of the Republic of German-Austria in accordance with the self-determination principle. The state proclaimed the official ideology that there were no separate Czech and Slovak nations, but only one nation of Czechoslovaks (see Czechoslovakism ), to the disagreement of Slovaks and other ethnic groups. Once

3312-497: The occupation. Despite the estimated 136,000 deaths at the hands of the Nazi regime, the population in the Reichsprotektorate saw a net increase during the war years of approximately 250,000 in line with an increased birth rate. On 6 May 1945, the third US Army of General Patton entered Plzeň from the south west. On 9 May 1945, Soviet Red Army troops entered Prague . After World War II, pre-war Czechoslovakia

3384-459: The occupations. In 1948, this provision was cancelled for the Hungarians, but only partially for the Germans. The government then confiscated the property of the Germans and expelled about 90% of the ethnic German population , over 2 million people. Those who remained were collectively accused of supporting the Nazis after the Munich Agreement , as 97.32% of Sudeten Germans had voted for

3456-408: The outbreak of World War I, Masaryk began working for Czech independence in a union with Slovakia. With Edvard Beneš and Milan Rastislav Štefánik , Masaryk visited several Western countries and won support from influential publicists. The Czechoslovak National Council was the main organization that advanced the claims for a Czechoslovak state. The Bohemian Kingdom ceased to exist in 1918 when it

3528-663: The preservation of the Soviet, socialist system and vowed to intervene in any state that sought to replace Marxism-Leninism with capitalism . In the week after the invasion, there was a spontaneous campaign of civil resistance against the occupation. This resistance involved a wide range of acts of non-cooperation and defiance: this was followed by a period in which the Czechoslovak Communist Party leadership, having been forced in Moscow to make concessions to

3600-514: The previous building from 1610, which was destroyed by fire in 1625. There are several monuments in the town associated with the most important native, Vincenz Priessnitz . The tomb of Vincenz Priessnitz was built in 1853 and is today a protected heritage site. In 1909, the Monument to Vincenz Priessnitz was unveiled. It is 10 to 6 metres (33 to 20 ft) large and the statue of a healer measures 2.85 metres (9.4 ft). Today, his birth house

3672-635: The prime architect of the Czechoslovak-Romanian-Yugoslav alliance (the " Little Entente ", 1921–38) directed against Hungarian attempts to reclaim lost areas. Beneš worked closely with France. Far more dangerous was the German element, which after 1933 became allied with the Nazis in Germany. Czech-Slovak relations came to be a central issue in Czechoslovak politics during the 1930s. The increasing feeling of inferiority among

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3744-424: The railway in 1888 also helped the development of the town. In 1808, the Grabenberg hamlet (later known as Gräfenberg/Gräfenberk, today Lázně Jeseník ) was founded, and the spa was established here in the 1820s. Gräfenberg was incorporated into the town in 1868. Jeseník remained with the Austrian Empire and the Austro-Hungarian Monarchy until World War I and the creation of Czechoslovakia in 1918. According to

3816-501: The reformer Alexander Dubček was appointed to the key post of First Secretary of the Czechoslovak Communist Party, there was a brief period of liberalization known as the Prague Spring . In response, after failing to persuade the Czechoslovak leaders to change course, five other members of the Warsaw Pact invaded . Soviet tanks rolled into Czechoslovakia on the night of 20–21 August 1968. Soviet Communist Party General Secretary Leonid Brezhnev viewed this intervention as vital for

3888-417: The same time as the fall of communism in Romania, Bulgaria, Hungary, East Germany and Poland. The word "socialist" was removed from the country's full name on 29 March 1990 and replaced by "federal". Pope John Paul II made a papal visit to Czechoslovakia on 21 April 1990, hailing it as a symbolic step of reviving Christianity in the newly-formed post-communist state. Czechoslovakia participated in

3960-432: The state ceased to exist, as Slovakia proclaimed its independence and Carpathian Ruthenia became part of Hungary , while the German Protectorate of Bohemia and Moravia was proclaimed in the remainder of the Czech Lands . In 1939, after the outbreak of World War II , former Czechoslovak President Edvard Beneš formed a government-in-exile and sought recognition from the Allies . After World War II, Czechoslovakia

4032-504: The sum is, therefore, more than 100%. During the period between the two world wars Czechoslovakia was a democratic state. The population was generally literate, and contained fewer alienated groups. The influence of these conditions was augmented by the political values of Czechoslovakia's leaders and the policies they adopted. Under Tomas Masaryk , Czech and Slovak politicians promoted progressive social and economic conditions that served to defuse discontent. Foreign minister Beneš became

4104-404: The top Communist leaders and Communist party itself resigned. On 31 December 1992, Czechoslovakia peacefully split into the two sovereign states of the Czech Republic and Slovakia . The country was of generally irregular terrain. The western area was part of the north-central European uplands. The eastern region was composed of the northern reaches of the Carpathian Mountains and lands of

4176-417: The town of Plzeň in 1953 , reflecting economic discontent. Police and army units put down the rebellion, and hundreds were injured but no one was killed. While its economy remained more advanced than those of its neighbors in Eastern Europe, Czechoslovakia grew increasingly economically weak relative to Western Europe. The currency reform of 1953 caused dissatisfaction among Czechoslovak laborers. To equalize

4248-449: The turn of the 16th and 17th centuries. Linen weaving became the most important source of income. Jeseník was damaged several times during the Thirty Years' War . Between the years 1622 and 1684, the town was in the centre of the infamous Northern Moravia witch trials . A large fire severely damaged the town in 1696. Despite the difficulties, economic prosperity continued until 1742, when Jeseník became part of Austrian Silesia after

4320-445: The two formally equal republics. However, the centralized political control by the Czechoslovak Communist Party severely limited the effects of federalization. The 1970s saw the rise of the dissident movement in Czechoslovakia, represented among others by Václav Havel . The movement sought greater political participation and expression in the face of official disapproval, manifested in limitations on work activities, which went as far as

4392-410: The wage rate, Czechoslovaks had to turn in their old money for new at a decreased value. The banks also confiscated savings and bank deposits to control the amount of money in circulation. In the 1950s, Czechoslovakia experienced high economic growth (averaging 7% per year), which allowed for a substantial increase in wages and living standards, thus promoting the stability of the regime. In 1968, when

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4464-457: Was a landlocked country in Central Europe , created in 1918, when it declared its independence from Austria-Hungary . In 1938, after the Munich Agreement , the Sudetenland became part of Nazi Germany , while the country lost further territories to Hungary and Poland (the territories of southern Slovakia with a predominantly Hungarian population to Hungary and Zaolzie with a predominantly Polish population to Poland). Between 1939 and 1945,

4536-403: Was a phonetic transcription of the German name. After World War II, the town was renamed along with many other towns containing German elements in their names. It is named after the surrounding mountains, which are called Hrubý Jeseník or Jeseníky . Jeseník is located about 70 kilometres (43 mi) north of Olomouc , in the historical land of Czech Silesia . It lies at the confluence of

4608-412: Was damaged by the 1997 and 2024 floods. The town is well known for the Priessnitz Medical Spa . Vincenz Priessnitz founded here the world's first hydrotherapy institute in 1822. Today the spa forms large spa resort on the northern outskirts of the town. The spa is visited by people from all over Europe. Jeseník is located on the railway lines Šumperk–Jeseník and Krnov–Jeseník . Jeseník

4680-464: Was incorporated into Czechoslovakia. Czechoslovakia was founded in October 1918, as one of the successor states of the Austro-Hungarian Empire at the end of World War I and as part of the Treaty of Saint-Germain-en-Laye . It consisted of the present day territories of Bohemia , Moravia , parts of Silesia making up present day Czech Republic , Slovakia , and a region of present-day Ukraine called Carpathian Ruthenia . Its territory included some of

4752-483: Was majority Polish, in October 1938. On 14 March 1939, the remainder ("rump") of Czechoslovakia was dismembered by the proclamation of the Slovak State , the next day the rest of Carpathian Ruthenia was occupied and annexed by Hungary, while the following day the German Protectorate of Bohemia and Moravia was proclaimed. The eventual goal of the German state under Nazi leadership was to eradicate Czech nationality through assimilation, deportation, and extermination of

4824-404: Was organized under the direction of Reinhard Heydrich , and the fortress town of Terezín was made into a ghetto way station for Jewish families. On 4 June 1942 Heydrich died after being wounded by an assassin in Operation Anthropoid . Heydrich's successor, Colonel General Kurt Daluege , ordered mass arrests and executions and the destruction of the villages of Lidice and Ležáky . In 1943

4896-410: Was reestablished under its pre-1938 borders, with the exception of Carpathian Ruthenia, which became part of the Ukrainian SSR (a republic of the Soviet Union ). The Communist Party seized power in a coup in 1948 . From 1948 to 1989, Czechoslovakia was part of the Eastern Bloc with a planned economy . Its economic status was formalized in membership of Comecon from 1949 and its defense status in

4968-437: Was reestablished, with the exception of Sub carpathian Ruthenia , which was annexed by the Soviet Union and incorporated into the Ukrainian Soviet Socialist Republic . The Beneš decrees were promulgated concerning ethnic Germans (see Potsdam Agreement ) and ethnic Hungarians. Under the decrees, citizenship was abrogated for people of German and Hungarian ethnic origin who had accepted German or Hungarian citizenship during

5040-554: Was succeeded by his close ally Edvard Beneš (1884–1948). The roots of Czech nationalism go back to the 19th century, when philologists and educators, influenced by Romanticism , promoted the Czech language and pride in the Czech people . Nationalism became a mass movement in the second half of the 19th century. Taking advantage of the limited opportunities for participation in political life under Austrian rule, Czech leaders such as historian František Palacký (1798–1876) founded various patriotic, self-help organizations which provided

5112-412: Was very similar to other plastic explosives, especially C-4 , in being highly malleable ; but it is usable over a greater temperature range than other plastic explosives, since it stays plastic between −40 and +60 °C. It is also waterproof. There are visual differences between Semtex and other plastic explosives, too: while C-4 is off-white in colour, Semtex is red or brick-orange. The new explosive

5184-841: Was widely exported, notably to the government of North Vietnam , which received 14 tons during the Vietnam War . However, the main consumer was Libya ; about 700 tons of Semtex were exported to Libya between 1975 and 1981 by Omnipol . It has also been used by Islamic militants in the Middle East and by the Provisional Irish Republican Army (PIRA) and the Irish National Liberation Army in Northern Ireland . On 21 December 1988, 340 g (12 ounces) of Semtex brought down

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