Operation Grenade

During World War II, Operation Grenade was the crossing of the Roer river between Roermond and Düren by the U.S. Ninth Army, commanded by Lieutenant General William Hood Simpson, in February 1945, which marked the beginning of the Allied invasion of Germany.

Operation Grenade (Battle of the Reichswald)
Part of the Western Allied invasion of Germany in the Western Front of the European theatre of World War II

Operations Veritable and Blockbuster (yellow) and Grenade (green)
Date23 February–10 March 1945
(2 weeks and 1 day)
Location
Rhineland, Germany
Result American victory
Belligerents
 United States  Germany
Commanders and leaders
William H. Simpson Gustav-Adolf von Zangen
Alfred Schlemm
Strength
381,000
2,010 tanks
2,830 guns
425 aircraft[1]		 54,000
180 tanks
Casualties and losses
1,330 killed
Total:
7,478[1]		 16,000 killed or missing
29,739 captured
Total:
45,739[lower-alpha 1]

On 9 February, the U.S. Ninth Army—operating under Field Marshal Sir Bernard Montgomery's Anglo-Canadian 21st Army Group since the Battle of the Bulge—was to cross the Roer and link up with the Canadian First Army, under Lieutenant-General Harry Crerar, coming from the Nijmegen area of the Netherlands in Operation Veritable, which had started at 05:00 on 8 February. However, once the Canadians had advanced, the Germans opened the sluice gates of upstream dams (Rur Dam and Urft Dam). This stopped the Americans from crossing as planned. It had been anticipated that the Germans would try to do this, and that General Omar Bradley′s U.S. 12th Army Group could capture them in time to stop the flooding.

During the two weeks that the river was flooded, Hitler would not allow Generalfeldmarschall Gerd von Rundstedt to withdraw behind the Rhine, arguing that it would only delay the inevitable fight. He ordered him to fight where his forces stood.

The Ninth Army was finally able to cross the river on 23 February. By then, other Allied forces were also close to the Rhine. German forces west of the Rhine during operations Veritable, Blockbuster and Grenade lost 90,000 men, of which more than 50,000 became prisoners of war (POW). Allied casualties amounted to some 23,000 men.

Notes

Footnotes

  1. Ninth Army captured 29,739 prisoners during the operation, and estimated to have inflicted 16,000 other casualties on the German army. In conjunction with Operation Veritable/Blockbuster, the combined allied effort inflicted approximately 90,000 casualties on the German army.[2]

Citations

  1. Clodfelter 2017, p. 479.
  2. Stacey, p. 522
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References
  • Clodfelter, M. (2017). Warfare and Armed Conflicts: A Statistical Encyclopedia of Casualty and Other Figures, 1492-2015 (4th ed.). Jefferson, North Carolina: McFarland. ISBN 978-0786474707.CS1 maint: ref=harv (link)
  • Stacey, Colonel Charles Perry; Bond, Major C.C.J. (1960). Official History of the Canadian Army in the Second World War: Volume III. The Victory Campaign: The operations in North-West Europe 1944–1945. The Queen's Printer and Controller of Stationery Ottawa.

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