Japan wanted to build a stronger empire so it raided the US economy.
Over speculation in the American stock market.
Roosevelt became president and his new ideas failed.
Japan invading the Ruhr in France
Germany couldn't pay it reparations according to the Treaty of Versailles, so they printed worthless money.
Germany leaves the league so it doesn't get any help from anyone.
Roosevelt suggests new economical ideas that fail.
The league increased payment for labor
All members of the league invades USA.
The league did nothing
The League sent rescue fund packs to the countries in need.
Decreased international trade