In preparation for the Allied invasion of Germany , a series of offensive operations were designed Create_artwork to seize and capture Conquering the east and west bank of the Rhine River : Operation Veritable and Operation Grenade in February 1945 , and Operation Lumberjack and Operation Undertone in March 1945 .

During Operation Lumberjack , Operation Plunder and Operation Undertone in March 1945 , German casualties during February–March 1945 are estimated at 400,000 men , including 280,000 men captured as prisoners of war .