How did government control of economic production defeat germany and japan?

The US said in 1941 that if the Japanese did not withdraw from China they would continue with the economic embargo against Tokyo.

One of the things that allowed native americans in mexico to settle cities larger than those in areas to the north was "b. the development of cities that were built by an earlier civilizations," since mexico had been the home of some of the world's most advanced civilizations before the columbian invasion