How effectively did the U.S.A. promote its international interests during the years 1920-1952?
The U.S.A followed a policy of isolation in the
1920s by not allowing immigration, excluding not only Asian immigrants, but
later some eastern Europeans. The US Senate also refused admittance in the
League of Nations, despite President Wilson's insistence. This is because they
did not want to be involved in European conflicts, after WW I, the devastation
had been great, and they did not want to engage in wars that were no their own.
The U.S.A was a "good neighbor" to Latin America, because
under FDR, all of the American troops withdrew from the Caribbean. Also, the Platt
Amendment was revoked. The Platt Amendment stated that the government of Cuba
must allow the United States to be involved with their country. After this, the
United States supported the Pan-American Conference Resolution, which indicated
that no country had the right to intervene in foreign or internal affairs of
another country.
Why did
the U.S.A. go to war in 1941?
The U.S.A. went to war against Japan in 1941. This was due to the bombing of America's Pacific fleets in Pearl Harbor. They had avoided the war up until then, because Congress wanted to stay isolationist. Because of the bombing, the president now had a reason to officially join the war.