Answer:
The League of Nations was established at the end of World War I as an international peacekeeping organization. Although US President Woodrow Wilson was an enthusiastic proponent of the League, the United States did not officially join the League of Nations due to opposition from isolationists in Congress.
Explanation:
The great depression i presume.
The answer is A, Arabian peninsula
The main causes of the Cold war included political ideologies between former allies of the second world war, and conflict over the future of a war torn Europe.