Factors that economists have pointed to as potentially causing or contributing to the downturn include troops returning from the war, which created a surge in the civilian labor force and more unemployment and wage stagnation; a decline in agricultural commodity prices because of the post-war recovery of European
The spread of communism all over Europe served as a distractor to nearby countries.They increased the size of their militaries.The secret treaties with smaller countries.The help of other countries to fight Great Britain and America They increased the size of their militaries.