1. Treaty of Versailles. The Treaty of Versailles ended World War I between Germany and the Allied Powers. Because Germany had lost the war, the treaty was very harsh against Germany. Germany was forced to "accept the responsibility" of the war damages suffered by the Allies. The treaty required that Germany pay a huge sum of money called reparations.
2. Japanese Expansion. In the period before World War II, Japan was growing rapidly. However, as an island nation they did not have the land or the natural resources to sustain their growth. Japan began to look to grow their empire in order to gain new resources. They invaded Manchuria in 1931 and China in 1937.
3. Fascism. With the economic turmoil left behind by World War 1, some countries were taken over by dictators who formed powerful fascist governments. These dictators wanted to expand their empires and were looking for new lands to conquer. The first fascist government was Italy which was ruled by the dictator Mussolini. Italy invaded and took over Ethiopia in 1935. Adolf Hitler would later emulate Mussolini in his takeover of Germany. Another Fascist government was Spain ruled by the dictator Franco.
4. Hitler and the Nazi Party. In Germany, Adolf Hitler and the Nazi Party rose to power. The Germans were desperate for someone to turn around their economy and restore their national pride. Hitler offered them hope. In 1934, Hitler was proclaimed the "Fuhrer" (leader) and became dictator of Germany.
5. Appeasement. After World War 1, the nations of Europe were weary and did not want another war. When countries such as Italy and Germany became aggressive and began to take over their neighbors and build up their armies, countries such as Britain and France hoped to keep peace through "appeasement." This meant that they tried to make Germany and Hitler happy rather than try to stop him. They hoped that by meeting his demands he would be satisfied and there wouldn't be any war
6. Failure of the League of Nations. The League of Nations was an international organisation set up in 1919 to help keep world peace. It was intended that all countries would be members of the League and that if there were disputes between countries they could be settled by negotiation rather than by force. If this failed then countries would stop trading with the aggressive country and if that failed then countries would use their armies to fight.
7. Not all countries joined the League. Although the idea for the League of Nations had come from Woodrow Wilson, there was a change of government in the United States before the signing of the treaty and the new Republican government refused to join. As a punishment for having started World War One, Germany was not allowed to join and Russia was also excluded due to a growing fear of Communism. Other countries decided not to join and some joined but later left.
8. The League had no power. The main weapon of the League was to ask member countries to stop trading with an aggressive country. However, this did not work because countries could still trade with non-member countries. When the world was hit by depression in the late 1920s countries were reluctant to lose trading partners to other non-member countries.
9. The League had no army. Soldiers were to be supplied by member countries. However, countries were reluctant to get involved and risk provoking an aggressive country into taking direct action against them and failed to provide troops.
10. Unable to act quickly. The Council of the League of Nations only met four times a year and decisions had to be agreed by all nations. When countries called for the League to intervene, the League had to set up an emergency meeting, hold discussions and gain the agreement of all members. This process meant that the League could not act quickly to stop an act of aggression.