Completed the following sentence: At first Germany was very successful in its military operations. In less than three months (April <unk> June 1940), Germany conquered
Denmark, Norway, the Low Countries, and France. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Hitler made peace overtures to the new British leader Winston Churchill in July 1940, but Churchill remained dogged in his defiance.<unk>Hitler made peace overtures to the new British leader Winston Churchill in July 1940, but Churchill remained dogged in his defiance. Churchill had major financial, military, and diplomatic help from President Franklin D. Roosevelt in the U.S. Hitler's bombing campaign against Britain (September 1940<unk>May 1941) failed. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk> weeks behind schedule due to the invasion of Yugoslavia <unk> but swept forward until they reached the gates of Moscow. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> Hitler<unk>had<unk>assembled<unk>more<unk>than<unk> 4,000,000<unk>troops, including<unk>1,000,000<unk>from<unk>his<unk>Axis<unk>allies. Soviets had lost nearly 3,000,000 killed in action, while 3,500,000 Soviet troops were captured in the first six months of the war. Einsatzgruppen (mobile Nazi death squads) executed all Soviet Jews that it located, while the Germans went to Jewish households and forced the families into concentration camps for labor or to extermination camps for death.<unk> Einsatzgruppen (mobile Nazi death squads) executed all Soviet Jews that it located, while the Germans went to Jewish households and forced the families into concentration camps for labor or to extermination camps for death.