Lorraine Campaign and Operation Undertone both occurred during which war?
Operation Undertone Operation Undertone was a large assault by the U.S. Seventh and French 1st Armies of the U.S. Sixth Army Group as part of the Allied invasion of Germany in March 1945 during World War II.
Battle of Broodseinde The Battle of Broodseinde was fought on 4 October 1917 near Ypres in Flanders, at the east end of the Gheluvelt plateau, by the British Second and Fifth armies and the German 4th Army. The battle was the most successful Allied attack of the Battle of Passchendaele. Using "bite-and-hold" tactics, with objectives limited to what could be held against German counter-attacks, the British devastated the German defence, which prompted a crisis among the German commanders and caused a severe loss of morale in the German 4th Army. Preparations were made by the Germans for local withdrawals and planning began for a greater withdrawal, which would entail the loss for the Germans of the Belgian coast, one of the strategic aims of the British offensive.