Immediate Cause of America's entry into the World War I

American gave up the Isolationist tendency when Japan suddenly attacked the Pearl Harbor on December 7, 1941. The U.S. entered the war against the Japan, Italy, and Nazi Germany. Italy was the first to surrender in 1943, followed by Germany and Japan in 1945 when, the U.S. dropped an atomic bomb on Hiroshima, Japan on August 6, 1945, followed by a second atomic bomb on Nagasaki. on August 9 ,1945. Japan came under the administration of Douglas Macarthur who within five years was able to transform Japan's government, society and economy along American lines.

Consequences of the World War II

The result of the World War I had far reaching consequences not only in America but also on the world. There was not only caused loss of people, but also industries and infrastructure were completely ruined and it also left many people homeless. In specific at the domestic front, though depression had ended, Americans had to face crowded cities which led to lack of basic facilities, racial tensions, rationing of consumer goods, censorship of the media, and related social evils like black marketing, child delinquency, and shortage of funds, food and materials,. In addition, there were riots and racial tensions in cities like Detroit and along the West Coast.

Many people had to live in alien lands as the borders had been redrawn after the World War II. At the foreign front, representatives of Great Britain, United States and Russia met at the Moscow Conference in 1943 and decided that Italy should be given a chance to establish a government on democratic lines, and that Austria should be given independence. Huge sum of money was exhorted from countries that supported Germany, Italy and Japan in the war. At the Quebec Conference in the following year, the Prime Minister of Britain, Winston Churchill and Present, Roosevelt decided on the fate of Germany. According to this was divided into four quadrants, which came under the control of Allied Powers - the United States, Great Britain, France, and the Soviet Union. Further, by the Morgenthau Plan of 1944 Germany lost all her industrial resources like the Ruhr and Silesia, and the main sources of coal and iron, namely Saar and Alsace-Lorraine came under the control of France. It finally reduced Germany into an agrarian state. Later, this plan was given up. In addition, Communism became popular and was had started to spread under the dictatorship of Premier Stalin. He put aside the clause of free election in the Yalta Conference and by force took over the government at Romania. Besides, many new organizations sprung up after the Second World War like the United Nations, the World Bank, the World Trade Organization, and the International Monetary Fund. After the war, the Union of Soviet Socialist Republics and the United States became formidable forces which resulted in the Cold War. It also brought an end to European colonization as large parts of European cities were destroyed and the war expenses had risen beyond measures. This lead to the rise of Nationalism in many countries like India, Malaysia and South East Asia, Africa and Pakistan