How did the formation of alliances help cause World War II?

The creation of alliances was a factor in the outbreak of World War II, just like it was a factor in the outbreak of World War I. In World War II, there were two major alliances. The Axis Powers consisted of Germany, Japan, and Italy. The Allied Powers consisted of the main countries of France and Great Britain. Later, the United States and the Soviet Union were members of the Allies.

The creation of alliances allowed member nations to rely on each other for support, for aid, and for resources. This was very important to the Axis Powers since they were intent on taking aggressive actions against other countries. Without support from the other alliance members, they may have been less willing to take these actions on their own. This could have left them to have to fight alone if a war broke out with other countries. For example, Germany knew it had the support of Italy and eventually Japan as Germany began to break the Versailles Treaty, build up its military, and annex other nations or lands.

The Allied alliance was important also since it allowed Great Britain and France to work together to deal with the aggression of Germany, Japan, and Italy. When the war broke out, the Allies were also able to try to coordinate their efforts to stop the Axis Powers.

Alliances were a factor in the outbreak of World War II and also during World War II.