What problems from World War I helped contribute to the outbreak of World War II? There were many problems that helped contribute the the outbreak of WWII, but only some of them were a result of WWI. After the first world war, Germany was forced to sign the Treaty of Versailles, take the guilt of starting the war, pay reparations, Germany lost territory, and was forced to keep a small military. There was also the Great Depression, and the economies were shrinking, trade was reduced, businesses closed, prices fell, banks failed, and unemployment rose. In some cases of a depression, people look for a political leader to resolve there problems, and the people chose Hitler. He promised to make Germany wealthy and powerful again. Hitler then began to built a secret military and was building up Germany’s army and weapons. Hitler then invaded Czechoslovakia. At this time, neither France nor Britain were prepared to make war, so they let it be. But then Germany invaded Poland. By this time, France and Britain had had enough of Germany breaking its promises, and declared war on Germany. At this time, World War II had begun in Europe, and would soon spread to other parts of the world.
Now after World War I, the League of Nations was established. Basically, the League was supposed to solve problems peacefully between nations without there being war. Well, this failed because not all nations joined the League, and the League had no army to prevent military aggression between the nations.