The League of Nations was established after World War I to maintain world peace. Why was the League of Nations unsuccessful in i
ts mission? The start of the Great Depression caused nations to stop supporting it financially. The League of Nations depended on the cooperation of its members and lacked an enforcement mechanism. The United States did not join the League of Nations, and therefore the League of Nations suffered from a lack of American leadership. All of these are correct.
The United States faced an energy crisis in 1973 because OPEC instituted a halt of oil exports, which forced many nations to consider alternative sources of fuel.
