The Great Depression did not directly cause the lack of resources but because of the Great Depression, other countries no longer wanted to trade their resources as they wanted to keep it to themselves thus causing Japan to have a lack of resources and having to expand towards Manchuria for land and resources.

- Marcus

The great depression was the main reason why Japan attack Manchuria as they had a lack of resources after the great depression struck. This lack was resources although caused by the growing population of Japan, if the great depression did not strike, Japan could have possibly handled the situation without invasion. However after the great depression struck, Japan fell into a state where the need for resources greatly increased but they have no source of resources, thus had to invade Manchuria which was rich in land and resources to accomodate the population and to balance the need for resources

Stalin had failed in increasing the production rates of Russia to be more than it was during the Tsar's reign so after all the social sacrifices that was used to industrialize Russia, the production rates were still not significantly different from when it was before.