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Operation Clipper

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A searchlight (or spotlight ) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp ) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction. It is usually constructed so that it can be swiveled about. The most common element used in modern searchlights is Xenon (Xe) . However, Rare-earth elements such as lanthanum (La) and cerium (Ce) are used in phosphors to improve light quality in some specialized searchlights.

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72-647: Luxembourg The Netherlands Belgium France Britain 1941–1943 1944–1945 Germany Strategic campaigns During the Second World War , Operation Clipper was an Allied offensive by the British XXX Corps (which included the American 84th Infantry Division ) to reduce the Geilenkirchen salient in mid-November 1944. Clipper was the preliminary to

144-533: A Panzerfaust . A second German attack, on Rischden, this time supported by two Tiger II tanks and two self-propelled guns, was engaged by PIATs , anti-tank guns and tanks that had arrived and by flanking fire from Tripsrath and it was beaten off with severe losses for the Germans. Events in the Prummern area had made American commanders cautious, particularly as there was now a gap in the American line between

216-622: A bulldozer was used. The U.S. infantry attempted to advance but, without tanks, they were beaten back. When the British Crocodiles were able to advance and assault the defences, there was rapid progress, with defenders surrendering. The mud intervened again, however, bogging down the Crocodiles′ armoured trailers. Without their support, infantry attacks on Müllendorf failed, particularly as the German defences had been strengthened by

288-427: A brief stop, her party crossed the border at 07:45. Meanwhile, Hereditary Grand Duke Jean and two of his sisters, accompanied by an aide-de-camp , Guillaume Konsbruck , were to wait at the border for confirmation of occupation. Around 08:00 the prime minister and his entourage passed over the border before making contact with French troops at Longlaville . Last minute telephone calls with Luxembourg City revealed

360-655: A central radio receiver in Captain Stein's official office near the volunteers' Saint-Esprit Barracks in the capital. On 4 January 1940, the Cabinet convened under Grand Duchess Charlotte and outlined steps to be taken in the event of a German invasion. Charlotte decided that if possible she and the government would flee abroad in the event of an attack to advocate for the country's sovereignty. During World War I , her elder sister and then-Grand Duchess Marie-Adélaïde had elected to stay during Germany's occupation of

432-597: A counter-attack was expected and fresh German troops appeared to be in the area; the advance to Prummern was delayed until the flank was secured. When the attack resumed, supported by British Sherman tanks , there was steady progress and the regiment's objectives were achieved by late afternoon. The British attack north and west of the town also achieved its objectives by nightfall. The Worcestershire Regiment advanced on Tripsrath, capturing its intermediate objectives of Rischden and intervening woods with little opposition and few casualties. The preparatory bombardment had reduced

504-543: A crossroads manned by German units, and was forced to detour through the countryside to avoid capture. French Ambassador Jean Tripier followed the government party but was stopped by the Germans and forced to return to the capital. Belgian Ambassador Kervyn de Meerendré was also stopped by German soldiers at the border and ordered to turn back, as was the Luxembourgish Minister of Education, Nicolas Margue, who had attempted to escape by taxi. Bodson later fled

576-525: A daily 20 minute-long message at midday and in the evening reserved for government announcements. For the rest of the month, the government supplied full transcripts of its broadcasts to the foreign legations in the country. Later that day several German stations posed as Radio Luxembourg by broadcasting in the Luxembourgish wavelength, making, in the opinion of United States Chargé d'Affaires George Platt Waller , "grossly unneutral announcements". On

648-557: A direct phone call to his superiors at Longwy. Also that day a German national working in Luxembourg as a gardener and a member of the German fifth column warned his Luxembourgish employer, Carlo Tuck, that an invasion was impending. Tuck passed the warning on to government officials. Late that evening, the Grand Ducal government came into possession of a document from a German divisional command. Dated 23 April 1940, it detailed

720-448: A ferociously effective and uniquely concentrated four-hour artillery bombardment on the 20th, and advancing infantry occupied it with no effective resistance. The lead battalion of the 333rd passed through Süggerath, by-passing determined German strongholds. Augmented by a second, fresh battalion, Süggerath was cleared during the night of 19/20 November. The 333rd Infantry was still over a mile short of its final objective of Würm, but there

792-423: A flight of Fairey Battle bombers from the 226 Squadron to attack German tank columns. They went unescorted and encountered heavy anti-aircraft fire. Most were damaged by flak but managed to escape. One received a direct hit and crashed near Bettendorf . German soldiers pulled the three injured crew from the burning wreckage, one of whom later died in a local hospital. The Grand Ducal Gendarmerie resisted

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864-618: A government-in-exile was created in London . On 1 September 1939 Germany invaded Poland , initiating World War II . This put Luxembourg's Grand Ducal government in a delicate situation. On one hand, the population's sympathies lay with the UK and France; on the other hand, due to the country's policy of neutrality since the Treaty of London in 1867, the government adopted a careful non-belligerent stance towards its neighbours. In accordance with

936-782: A remote farm near the Moselle . At 11:45 on 9 May he radioed Longwy: "Reports of important German troop movements on the German-Luxembourg frontier." Throughout the night his messages became more and more frantic. Two Luxembourgish customs officials at Wormeldange heard horses and soldiers across the Moselle, but were unable to make out the Germans' activities due to heavy fog. At around midnight, Captain Stein, Minister of Justice Victor Bodson , and Police Commissioner Joseph Michel Weis held an emergency meeting. Bodson requested that

1008-584: A wider Allied operation, Operation Queen , to gain control of the Roer valley and of the Hürtgen Forest . Geilenkirchen is situated on the Wurm River, some 20 km (12 mi) north of Aachen . The surrounding area is undulating, alternating between woodland, farmland and industrial villages. The area was crossed by a network of passable minor roads, some major roads and a railway line. The Wurm

1080-597: Is the major geographic feature. The salient was a German position on the Siegfried Line ( Westwall ) at the boundary between the British Second Army and the American 9th Army . It restricted the movement of Allied forces and was a potential threat. Anglo-American cooperation was prompted by the availability of British artillery and the specialised armour support of " Hobart's Funnies " (such as flail and flamethrower tanks). A two-pronged attack

1152-485: The 2022 Russian invasion of Ukraine a searchlight has been used for anti-aircraft warfare . Today, searchlights are used in advertising , fairs , festivals and other public events. Their use was once common for movie premieres ; the waving searchlight beams can still be seen as a design element in the logos of 20th Century Studios and the Fox television network . The world's most powerful searchlight today beams from

1224-425: The 9th Panzer Division ′s 10th Panzergrenadier Regiment , with six tanks. The night attack was fought off, but the American advance toward Beeck was delayed until just before dawn on the 19th. Resistance in Prummern continued until 20 November, when it was finally cleared with the support of British Churchill Crocodile flamethrower tanks: the adjacent high ground, "Mahogany Hill", which had held out for two days,

1296-654: The Hawker Hurricane . This never proved very successful, as the light made the emitting aircraft a very big target for rear gunners, who would simply have to shoot into the light and be guaranteed to hit something eventually. During the Battle of the North Atlantic , RAF aircraft such as the Vickers Wellington were assigned to patrol for surfaced German U-boats at night, when they would be on

1368-484: The Russo-Japanese War from 1904–05. Searchlights were installed on most naval capital ships from the late 19th century through WWII , both for tracking small, close-in targets such as torpedo boats , and for engaging enemy units in nighttime gun battles. The Imperial Japanese Navy especially was known for its intensive development of nighttime naval combat tactics and extensive training. The War in

1440-599: The Second World War . Controlled by sound locators and radars, searchlights could track bombers, indicating targets to anti-aircraft guns and night fighters and dazzling crews. Searchlights were occasionally used tactically in ground battles. One notable occasion was the Red Army use of searchlights during the Battle of the Seelow Heights in April 1945. 143 searchlights were directed at the German defence force, with

1512-512: The Sperry Company . These were mostly of 60 inch (152.4 cm) diameter with rhodium plated parabolic mirror, reflecting a carbon arc discharge. Peak output was 800,000,000 candela . It was powered by a 15 kW generator and had an effective beam visibility of 28 to 35 miles (45 to 56 km) in clear low humidity. The searchlight also found a niche for use by night fighters and anti-submarine warfare aircraft. The Turbinlite

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1584-535: The 15th Panzergrenadier Division. A flanking attack by the U.S. 405th Infantry Regiment toward Beeck on 22 November similarly bogged down against prepared defences. On the other side of the Wurm, British assaults were also beaten off by strengthened resistance. Despite the frustrations of 21–22 November, and the failure to capture the final objectives, the purpose of the operation had, in fact, now been achieved. The Geilenkirchen salient had been substantially removed and

1656-495: The 84th Division and the U.S. 2nd Armored Division 1.5 mi (2.4 km) distant at Apweiler . This was plugged by the temporary attachment of the 405th Infantry Regiment . Geilenkirchen itself was subdued relatively easily by the 333rd Infantry Regiment on 19 November, but the Allied advance suffered from the lack of artillery support which had been held back by the fear of friendly fire incidents, as had occurred earlier in

1728-529: The 84th Division would occupy the town and its north-eastern suburbs (third phase) before, in the fourth phase, both divisions would advance north-east about 3 mi (4.8 km), clearing both sides of the Wurm. The final objectives were the villages of Hoven, Müllendorf, Würm and Beeck. For aerial support the operation had aircraft from RAF Second Tactical Air Force and the XXIX Tactical Air Command . The German defenders consisted of

1800-557: The British sector. Two troops of tanks from the British Sherwood Rangers Yeomanry provided close support, although they could not make up entirely for lack of artillery. From Geilenkirchen, the advance continued northeast along the Wurm toward Süggerath. Crocodiles subdued the increasing German resistance, especially two pillboxes guarding the road into Süggerath. "A few squirts from the flame-throwers, and

1872-624: The French 3rd Light Cavalry Division under General Petiet, supported by the 1st Spahi Brigade under Colonel Jouffault and the 2nd company of the 5th Armoured Battalion, crossed the southern border to conduct a probe of German forces; these units later retreated behind the Maginot Line . Five Spahis were killed. British Air Marshal Arthur Barratt , impatient with the reluctance of the French Air Force to conduct air strikes , ordered

1944-553: The French and British forces landed troops under searchlights. By 1907 the value of searchlights had become widely recognized. One recent use was to assist attacks by torpedo boats by dazzling gun crews on the ships being attacked. Other uses included detecting enemy ships at greater distances, as signaling devices, and to assist landing parties. Searchlights were also used by battleships and other capital vessels to locate attacking torpedo boats and were installed on many coastal artillery batteries for aiding night combat. They saw use in

2016-491: The German border, 18 roadblocks on the German border, and five roadblocks on the French border. Since the Corps des Gendarmes et Volontaires had no pioneer unit, construction fell to the responsibility of civilian engineers, while technical advice was sought from the French, who took great interest in the line's establishment. A series of nine radio outposts were established along the German border, each manned by gendarmes, with

2088-516: The German troops, but to little avail; the capital city was occupied before noon. The Gendarmerie chain of command in the south was thrown into disarray by the influx of refugees and the arrival of German and French troops. Most gendarmes escorted refugees over the border, while some abandoned their posts and fled to France. Total Luxembourgish casualties amounted to six gendarmes and one soldier wounded, while 22 soldiers (six officers and 16 non-commissioned officers ) and 54 gendarmes were captured. By

2160-448: The Germans poured out ... The bastards are afraid of those flame-throwers and won’t be caught inside a pillbox ...", said one U.S. company commander. The capture of Geilenkirchen opened a supply route to Tripsrath. German artillery heavily bombarded Tripsrath for the next four days, but, sheltering in basements, the British infantry suffered few losses. On the other hand, German defenders of the neighbouring hamlet of Bauchem were subdued by

2232-599: The Germans′ will to resist and rain had exposed much of the minefields. The rain, however, also made it difficult to bring-up armoured support, anti-tank guns and supplies. An unsupported British advance on a copse—using Universal Carriers —was engaged by two self-propelled guns and forced back, with heavy casualties. Despite further counter-attacks and " friendly fire " casualties, the Worcestershires occupied Tripsrath after dark, aided by artillery, and held most of

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2304-404: The Luxembourgish government and Grand Ducal court of the invasion. Foreign Minister Joseph Bech , in the presence of Prime Minister Pierre Dupong , attempted to contact the German ambassador at the legation and at his private residence, but they were informed that he was present at neither. At 06:30 the majority of the government, including Dupong and Bech, evacuated the capital by motorcade to

2376-666: The Pacific saw a number of nocturnal engagements fought by searchlight, particularly the Battle of Savo Sound at Guadalcanal. Although searchlights remained in use throughout the war, the newly developed radar proved to be a far more effective locating device, and Japanese radar development lagged far behind that of the US. Searchlights were first used in the First World War to create "artificial moonlight" to enhance opportunities for night attacks by reflecting searchlight beams off

2448-566: The Schuster Line's tank traps. Fire was exchanged, but the Germans did not encounter any significant resistance except for some bridges destroyed and some land mines since the majority of the Luxembourgish Volunteer Corps stayed in their barracks. The border was defended only by soldiers who had volunteered for guard duty and gendarmes . A handful of Germans secured the Moselle bridge at Wormeldange and captured

2520-770: The U.S. XIII Corps now had room to manoeuvre. The 84th Infantry Division reverted to U.S. command and further attacks were abandoned on the 23rd. On 23 November, the Worcestershires were relieved by 5th Battalion of the Wiltshire Regiment , who had been holding the village of Birgden for the last 12 days. This was welcome for the Worcester men who had suffered continuous shelling in their forward positions in Tripsrath and Rischden. British XXX Corps XII SS Corps Citations Bibliography German invasion of Luxembourg The German invasion of Luxembourg

2592-679: The agents were to be used to seize key bridges over the Sauer , Moselle and Our rivers. Luxembourg authorities also took notice, and Captain Stein worked to stop the Germans' activities. On 3 March, the French Third Army was ordered to occupy Luxembourg in the event of a German attack. On the evening of 8 May, the Grand Ducal Government ordered for the first time that all doors of the Schuster Line be closed at 11:00 and remain so regardless of circumstance until 06:00

2664-476: The aim of temporarily blinding them during a Soviet offensive, begun with the largest artillery bombardment the world had ever seen until that point. However, the morning fog diffused the light and silhouetted the attacking Soviet forces, making them clearly visible to the Germans. The Soviets suffered heavy losses as a result and were forced to delay their invasion of the city. Second World War-era searchlights include models manufactured by General Electric and by

2736-476: The border town of Esch . Bodson stayed behind at the Saint-Esprit Barracks to monitor the situation. In Esch a group of 125 German special operations troops had landed by Fieseler Storch , with orders to hold the area until the main invasion force arrived. A gendarme confronted the soldiers and asked that they leave, but he was taken prisoner. The government motorcade encountered a roadblock at

2808-489: The bottoms of clouds, a practice which continued in the Second World War . The term "artificial moonlight" was used to distinguish illumination provided by searchlights from that provided by natural moonlight, which was referred to as "movement light" in night-time manoeuvers. Searchlights were also heavily used in the defense of the UK against German nighttime bombing raids using Zeppelins . Searchlights were used extensively in defense against nighttime bomber raids during

2880-562: The bulk of the 176th Infantry Division , northwest of Geilenkirchen, and the extemporised 183rd Volksgrenadier Division , in the town and southeast of it. General der Infantrie Günther Blumentritt —commander of the XII SS Corps which the 176th and 183rd were subordinate to —had placed the bulk of his artillery in the area. South-east of Geilenkirchen, deep minefields had been laid from Geilenkirchen to Jülich , via Immendorf and Puffendorf, about 10 km (6.2 mi). The area

2952-486: The capital and, having learned many of the secondary roads by memory, was able to avoid German roadblocks and navigate his way to France. Following consultation with her ministers, Grand Duchess Charlotte decided to abandon the palace. Accompanied by her husband, Prince Felix , her mother, Dowager Grand Duchess Marie Anne , and members of the Grand-Ducal suite, she departed for the border village of Redange . After

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3024-448: The capital be reinforced by gendarmes from the south, and told Weis to forward this information to the capital's district commissioner to give the necessary orders. Weis later tried to contact the district commissioner by phone, but failed to reach him; reinforcements never came. A short time later the gendarmes at Diekirch were ordered to patrol the local railway bridge and be wary of unfamiliar persons. Luxembourgish authorities received

3096-460: The capital to be completely surrounded. Charlotte's party was able to link up with the government motorcade at Longwy. Meanwhile, Jean's party's car was strafed by a German aircraft while stopped at a cafe. Near Esch, the group was delayed by a German roadblock, and they escaped when their chauffeur drove straight through the soldiers. The party ultimately joined Charlotte and the Grand Ducal government at Sainte-Menehould . At 08:00, elements of

3168-496: The country , bringing the monarchy into disrepute; Charlotte wanted to avoid such problems. The government moved some of the country's gold reserves to Belgium, and began stockpiling funds in its Brussels and Paris legations in the event it was forced to flee due to German attack. The Paris legation was also given a sealed envelope detailing a formal request of military assistance from the French government in case communications were cut-off in an invasion. After several false alarms in

3240-525: The country. Since an invasion had not yet occurred they still enjoyed diplomatic privilege and the police were forced to release them. One group of fifth columnists was arrested while attempting to reach the legation. Meanwhile, Captain Archen had received his subordinate's report, but by that point, he had been told by informants in the Gendarmerie that shots had been exchanged with German operatives at

3312-522: The division's chief of staff's orders to various units to occupy strategic points within Luxembourg. The Grand Ducal government put all border posts and Grand Ducal Gendarmerie stations on full alert. In Luxembourg City , gendarmes mobilised to defend public buildings and dispatched vehicle patrols to arrest fifth columnists. The economic councillor and the chancellor of the German legation were detained for questioning regarding allegations that they had used legation cars to organise subversive activities within

3384-450: The evening of 10 May 1940, most of the country, with the exception of the south, was occupied by German forces. More than 90,000 civilians fled from the canton of Esch-sur-Alzette as a consequence of the advance. 47,000 evacuated to France, 45,000 poured into the central and northern part of Luxembourg. On 11 May the Grand Ducal government reached Paris and installed itself in the Luxembourg legation. Fearing German aerial attack and finding

3456-542: The evening of 21 September, the Grand Ducal government suspended all broadcasts pending the resolution of the war. On 14 September the volunteer corps was bolstered by the addition of a 125-strong auxiliary unit. German military manoeuvres and river traffic made the population increasingly nervous, so in the spring of 1940 fortifications were erected along the borders with Germany and France. The so-called Schuster Line , named after its chief constructor, consisted of 41 sets of concrete blocks and iron gates; 18 bridgeblocks on

3528-538: The first reports of exchanged fire at around 02:00 on 10 May when two gendarmes were ambushed near the German border by plainclothes agents. The Germans retreated to the Fels mill near Grevenmacher and around 20 soldiers who volunteered were dispatched to arrest them. The government then ordered all steel doors along the border locked. At 02:15 soldiers stationed in Bous were attacked by Germans in civilian clothes. One soldier

3600-456: The following morning. Throughout the day Luxembourgish authorities witnessed much less activity on the far side of the border and made no reports of tank or machine gun movements. On the afternoon of 9 May, a French intelligence officer stationed in Clervaux witnessed German troops preparing pontoon bridges in the Sauer . He attempted in vain to contact Captain Archen, and resorted to making

3672-402: The invasion, but his reports never reached the 3rd Army at Metz . General Charles Condé, the army's commander, was unclear about the situation and at 05:30 dispatched aerial reconnaissance units to investigate. At 06:00 the French 3rd Light Cavalry Division was ordered to intervene. Telephone and radio messages from the border posts to the Gendarmerie and Volunteer Corps headquarters informed

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3744-466: The last post to fall, in Wasserbillig , transmitted until the Germans breached the operating room. The steel doors of the Schuster Line were ordered closed on 10 May 1940 at 03:15, following reports of movement of German troops on the east side of the border rivers Our , Sauer, and Moselle. At 03:30 Luxembourgish authorities released interned French pilots and German deserters. The Royal Family

3816-476: The mine-clearing flail tanks supporting the infantry. These tanks moved toward the German mine field between Geilenkirchen and Immendorf, but, on the wet ground, mud lessened the flails′ effectiveness and so engineers followed with mine detectors. After a brief artillery bombardment, the 334th Infantry Regiment advanced through the cleared strips at 07:00 and easily secured the high ground east of Geilenkirchen. The right flank gave some concern to U.S. commanders as

3888-403: The portfolios for Interior, Transportation, and Public Works; Joseph Carmes managed Finance, Labour, and Public Health; Louis Simmer oversaw Education, and Mathias Pütz directed Agriculture, Viticulture, Commerce, and Industry. In the days after the invasion Luxembourgish officers walked about the capital freely, though the regular soldiers were mostly confined to their barracks. Colonel Speller

3960-592: The small facilities unsuitable, the government moved further south, first to Fontainebleau , and then Poitiers . It later moved to Portugal and the United Kingdom, before finally settling in Canada for the duration of the war. In exile, Charlotte became an important symbol of national unity. Her eldest son and heir, Jean, volunteered for the British Army in 1942. The only official representative left behind

4032-668: The spring of 1940, the probability of a military conflict between Germany and France grew. Germany stopped the export of coke for the Luxembourgish steel industry . Abwehr agents under Oskar Reile infiltrated the country, posing as tourists. This was observed by Captain Fernand Archen, an undercover senior French intelligence officer in Luxembourg City , posing as a wine merchant. He reported his findings to his superiors at Longwy on 7 May, understanding that

4104-493: The surface, charging their batteries . A large searchlight called a Leigh light was suspended from the bottom of the wing or fuselage , and would be used to illuminate the surfaced U-boat while it was being attacked with bombs and depth charges . The Leigh light was somewhat more successful than the Turbinlite, but in both cases the development of centimeter-wave radar proved to be the far more effective answer. During

4176-865: The top of the pyramid-shaped Luxor Hotel in Las Vegas . It concentrates about 13,650,000 lumens from 39 7kW xenon lamps into a beam of about 9,129,000,000 candela . Tribute in Light is an art installation that uses two columns of searchlights to represent the former Twin Towers of the World Trade Center , in remembrance of the September 11 attacks . It is produced annually in Lower Manhattan . Disney parks uses searchlights in their nighttime fireworks displays. They are installed on top of

4248-723: The treaty's restrictions, the only military force Luxembourg maintained was its small Volunteer Corps under Captain Aloyse Jacoby , reinforced by the Grand Ducal Gendarmerie under Captain Maurice Stein . Together they formed the Corps des Gendarmes et Volontaires under Major-Commandant Émile Speller . At noon on 1 September Radio Luxembourg announced that in order for the country to remain unambiguously neutral it would cease broadcasting. Exceptions were

4320-422: The troops manning the frontline, advance north-east 2 mi (3.2 km) and take Prummern and the surrounding high ground, east of Geilenkirchen. Second, at midday, the British 43rd (Wessex) Infantry Division – commanded by Major-General Ivor Thomas – was to advance and capture the high ground north and west of the town (around Bauchem and Tripsrath). Once done, Geilenkirchen would be virtually encircled, and

4392-566: The two customs officers there, who had demanded that they halt but refrained from opening fire. The partly demolished bridge over the Sauer at Echternach was quickly repaired by engineers of the Großdeutschland regiment , allowing the passage of the 10th Panzer Division. Planes flew overhead, heading for Belgium and France, though some stopped and landed troops within the country. Captain Archen repeatedly alerted his superiors at Longwy of

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4464-479: The village sometimes with Germans as next-door neighbours. Given the first day's success, XXX Corps ′ commander—Lieutenant General Brian Horrocks —directed that the last two phases—3 and 4—should be combined on the 19th. In order to facilitate this, the U.S. 84th Division continued its advance toward Süggerath, instead of consolidating overnight. A reconnaissance patrol toward Beeck, however, reported an impending German counter-attack on Prummern by two companies of

4536-492: Was Albert Wehrer  [ de ] , head of the Ministry of State Affairs, as well as the 41 deputies. By the end of May Wehrer and several high ranking functionaries established a provisional "Administrative Commission" to govern Luxembourg in lieu of the Grand Ducal family and the other ministers. Wehrer retained the Ministry of State Affairs and assumed responsibility for Foreign Relations and Justice; Jean Metzdorf held

4608-439: Was a powerful searchlight mounted in the nose of an RAF Douglas Boston light bomber , converted into a night fighter to shoot down Luftwaffe night bombers . The aircraft would be directed in the general direction of the enemy by ground-based or metre-wave airborne radar, and the pilot would then switch on the Turbinlite, illuminating the enemy aircraft, which would then be shot down by accompanying RAF day fighters such as

4680-477: Was at the point where a new section of the Westwall , built while Aachen held out, joined the established defences. Westwall used the compact, stone-built buildings in the villages, which had been fortified, and purpose-built concrete bunkers. At 06:00, before dawn, on 18 November, giant searchlights (" canal defence lights ") of the 357th Searchlight Battery, Royal Artillery provided hazy indirect light for

4752-406: Was badly injured, as was one German who was detained. Shortly thereafter a gendarmerie lieutenant and his chauffeur were ambushed and exchanged fire with German-speaking cyclists; no one was hurt. Fifth columnists successfully severed the telephone wires between the capital and the border posts, forcing the gendarmes to communicate via shortwave radio. German agents gradually seized the radio stations;

4824-578: Was briefly incarcerated by the Gestapo , though he was later released under close supervision. Searchlight The first use of searchlights using carbon arc technology occurred during the Siege of Paris during the Franco-Prussian War . The Royal Navy used searchlights in 1882 to dazzle and prevent Egyptian forces from manning artillery batteries at Alexandria . Later that same year,

4896-597: Was evacuated from its residence in Colmar-Berg to the Grand Ducal palace in Luxembourg City. Around 30 minutes later, at dawn, German planes were spotted flying over Luxembourg City towards Belgium. The German invasion began at 04:35 when the 1st , 2nd , and 10th Panzer Divisions crossed the border at Wallendorf-Pont , Vianden , and Echternach respectively. Wooden ramps were used to cross over

4968-444: Was finally captured by an American surprise attack on 22 November. On the 19th, the Worcestershires had been denied supply and support by the lack of a usable supply route, but they fought off a counter-attack by the 104th Panzer Grenadier Regiment of the 15th Panzergrenadier Division. Five Shermans of the 4th/7th Royal Dragoon Guards —equipped for traversing mud—arrived, but four were almost immediately knocked out by artillery and

5040-524: Was part of Case Yellow ( German : Fall Gelb ), the German invasion of the Low Countries — Belgium , Luxembourg and the Netherlands —and France during World War II . The battle began on 10 May 1940 and lasted just one day. Facing only light resistance, German troops quickly occupied Luxembourg. The Luxembourgish government, and Grand Duchess Charlotte , managed to escape the country and

5112-510: Was planned on the salient and the temporary attachment of the 84th Infantry Division to XXX Corps, avoided problems of divided command. The British part of the operation was coordinated from 13 November to 24 November in a house at Laurastraat 67 in Eygelshoven (now Kerkrade ). The operation was planned to take four phases. First, on 18 November the U.S. 84th Division – commanded by Major General Alexander R. Bolling – would pass through

5184-427: Was the possibility of establishing a coherent frontline with XXX Corps on its left and 334th Infantry Regiment on its right. The weather, however, intervened. Intermittent showers were followed by a downpour on 21 November, turning the fields into mudbaths that rendered the tanks ineffective and vulnerable. The direct road to Würm was mined and an alternative side road was blocked by debris and could not be cleared until

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