The Axis lost, at least partly because the Allies, after the USA's and the Soviet Union's entrance into the war, had greater productive resources, and were able to turn these resources into greater numbers of soldiers and weapons than the Axis. This was further compounded by the comparative lack of equipment standardization among the Axis forces and its failure to use its large territorial (and associated resources) gains in an economy on war footing. For instance Nazi Germany was the only war economy which largely didn't make use of the labour of women.
