Immediately following World War II, the United States and the Soviet Union entered into a Cold War, so the answer would be "escalating <span>tensions with the Soviet Union"
One of the main reasons why the United States wanted to continue to participate in the international arena after World War II was because tensions between the United States and the Soviet Union were escalating. The United States was worried that communism was going to spread throughout Western Europe and the world, and they believed their duty was to stop this and instead encourage capitalism and democracy. The only way to do so was to remain active in international affairs.
Nine thousand banks failed during the months following the stock market crash of 1929. It is far too simplistic to view the stock market crash as the single cause of the Great Depression. A healthy economy can recover from such a contraction.
This means a New World in which they can explore and make themselves at home in the land in hopes to make it their own. Columbus meant to seek out this new land in which he called the New World because it would give them a fresh start on everything