Because Pearl Harbor had united the nation, few people were prosecuted for disloyalty or sedition, unlike during World War I. The one glaring exception to this policy was the scandalous treatment of Japanese and Americans of Japanese descent. In 1942, on the basis of groundless racial fears and suspicions, virtually the entire Japanese-American population of the West Coast, amounting to 110,000 persons, was rounded up and imprisoned in “relocation” centres, which the inmates regarded as concentration camps. The Japanese-Americans lost their liberty, and in most cases their property as well, despite the fact that the Federal Bureau of Investigation, which had already arrested those individuals it considered security risks, had verified their loyalty.
A row of barracks at the Minidoka Relocation Center, an internment camp for Japanese Americans in Hunt, Idaho, 1942–45.Records of the War Relocation Authority, National Archives, Washington, D.C.
The 1944 election
Roosevelt soundly defeated Gov. Thomas E. Dewey of New York in the 1944 election, but his margin of victory was smaller than it had been previously. His running mate, chosen by leaders who disliked former vice president Henry A. Wallace for his extreme liberalism, was Sen. Harry S. Truman of Missouri, a party Democrat who had distinguished himself by investigating fraud and waste among war contractors.
Thomas E. Dewey, 1944.UPI/Bettmann Archive
The new U.S. role in world affairs
The U.S. entry into World War II had brought an end to isolation, and President Roosevelt was determined to prevent a retreat into isolationism once the war was over. After a series of conferences in December 1941, Roosevelt and Prime Minister Churchill announced the formation of the United Nations, a wartime alliance of 26 nations. In 1943 Roosevelt began planning the organization of a postwar United Nations, meeting with congressional leaders to assure bipartisan support. The public supported Roosevelt’s efforts, and that fall Congress passed resolutions committing the United States to membership in an international body “with power adequate to establish and to maintain a just and lasting peace.” Finally, in the spring of 1945, delegates from 50 nations signed the charter for a permanent United Nations. In addition to political harmony, Roosevelt promoted economic cooperation, and, with his full support, in 1944 the World Bank and the International Monetary Fund were created to bar a return of the cutthroat economic nationalism that had prevailed before the war.
Throughout the war Roosevelt met with Churchill and Stalin to plan military strategy and postwar policy. His last great conference with them took place at Yalta in Crimea in February 1945. There policies were agreed upon to enforce the unconditional surrender of Germany, to divide it into zones for occupation and policing by the respective Allied forces, and to provide democratic regimes in eastern European nations. A series of secret agreements were also made at Yalta; chief among these was the Soviet pledge to enter the war against Japan after the German surrender, in return for concessions in East Asia.
Yalta ConferencePrime Minister Winston Churchill, Pres. Franklin D. Roosevelt, and Premier Joseph Stalin meeting at the Yalta Conference, 1945.U.S. Army Photo
Roosevelt died suddenly of a cerebral hemorrhage on April 12 and was succeeded by Truman. In the following months the German armed forces collapsed, and on May 7 all German forces surrendered. In the Pacific the invasions of Iwo Jima and Okinawa in early 1945 brought Japan under a state of siege. In the summer, before an invasion could take place, the United States dropped atomic bombs on Hiroshima and Nagasaki. On September 2 the surrender of Japan was signed in Tokyo harbour on the battleship Missouri. Frank Freidel William L. O'Neill
The United States since 1945
The peak Cold War years, 1945–60
The Truman Doctrine and containment
Truman, who had been chosen as vice president for domestic political reasons, was poorly prepared to assume the presidency. He had no experience of foreign affairs, knew little about Roosevelt’s intentions, and was intimidated by the giant shoes he now had to fill. His first decisions were dictated by events or plans already laid. In July, two months after the German forces surrendered, he met at Potsdam, Germany, with Stalin and Churchill (who was succeeded at the conference by Clement Attlee) to discuss future operations against Japan and a peace settlement for Europe. Little was accomplished, and there would not be another meeting between Soviet and American heads of state for 10 years.
Potsdam Conference; Truman, Harry S.; Churchill, Winston; Stalin, JosephPotsdam Conference, with U.S. President Harry S. Truman (centre), flanked by Soviet Premier Joseph Stalin (left) and British Prime Minister Winston Churchill (right), near Berlin, Germany, July 1945.U.S. Army Photo
Hopes that good relations between the superpowers would ensure world peace soon faded as a result of the Stalinization of eastern Europe and Soviet support of communist insurgencies in various parts of the globe. Events came to a head in 1947 when Britain, weakened by a failing economy, decided to pull out of the eastern Mediterranean. This would leave both Greece, where a communist-inspired civil war was raging, and Turkey to the mercies of the Soviet Union. Truman now came into his own as a national leader, asking Congress to appropriate aid to Greece and Turkey and asserting, in effect, that henceforth the United States must help free peoples in general to resist communist aggression. This policy, known as the Truman Doctrine, has been criticized for committing the United States to the support of unworthy regimes and for taking on greater burdens than it was safe to assume. At first, however, the Truman Doctrine was narrowly applied. Congress appropriated $400 million for Greece and Turkey, saving both from falling into unfriendly hands, and thereafter the United States relied mainly on economic assistance to support its foreign policy.
The keystone of this policy, and its greatest success, was the European Recovery Program, usually called the Marshall Plan. Europe’s economy had failed to recover after the war, its paralysis being worsened by the exceptionally severe winter of 1946–47. Thus, in June 1947 Secretary of State George C. Marshall proposed the greatest foreign-aid program in world history in order to bring Europe back to economic health. In 1948 Congress created the Economic Cooperation Administration and over the next five years poured some $13 billion worth of aid into western Europe. (Assistance was offered to Eastern-bloc countries also, but they were forced by Stalin to decline.) The plan restored economic vitality and confidence to the region, while undermining the local communist parties. In 1949 Truman proposed extending similar aid to underdeveloped nations throughout the world, but the resulting Point Four Program was less successful than the Marshall Plan. Experience showed that it was easier to rebuild a modern industrial economy than to develop one from scratch.
U.S. policy for limiting Soviet expansion had developed with remarkable speed. Soon after the collapse of hopes for world peace in 1945 and 1946, the Truman administration had accepted the danger posed by Soviet aggression and resolved to shore up noncommunist defenses at their most critical points. This policy, known as containment, a term suggested by its principal framer, George Kennan, resulted in the Truman Doctrine and the Marshall Plan, as well as in the decision to make the western zones of Germany (later West Germany) a pillar of strength. When the Soviet Union countered this development in June 1948 by blocking all surface routes into the western-occupied zones of Berlin, Britain and the United States supplied the sectors by air for almost a year until the Soviet Union called off the blockade. A logical culmination of U.S. policy was the creation in 1949 of the North Atlantic Treaty Organization (NATO), a military alliance among 12 (later 16) nations to resist Soviet aggression.