In fact, it's interesting to consider WWII from the perspective that the Allied powers wanted to ensure that Germany was sacrificed against the USSR's expansion, & that the Allied invasion of Germany was accomplished so efficiently because the Nazi state was really a puppet government at the highest levels of its intelligence agencies, which fed fake information to the lower orders, & reported to the British. "A clear confirmation that the Enemy High Command had swallowed the deception structured in Operation Fortitude – that the Enemy’s belief was complete in an expected invasion in the Pas de Calais area… not Normandy." -- the only real reason to invade Germany was to ensure that the USSR didn't capture the entire thing-- the move toward the "Cold War" with the USSR was simultaneous with WW2-- the notion that "The Allies" represented an actually unified force is erroneous-- in fact, the proper way to understand WW2 is as a war between the emerging American Empire & the British Empire (resulting in American victory & the dissolution of the British Empire).