The League of Nations failed to protect Manchuria. In 1931 Japan decided on military expansion to seize resources for their economy. They staged an attack on a Japanese railway line in Manchuria and used this as an excuse to invade. The League condemned this and ordered them to withdraw but took a year to make this decision (The Lytton Report). Instead of following the orders of the League Japan invaded more of Manchuria and in 1933 left the League.