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The U.S. had a policy of isolationism toward the Soviet Union (1918-33), and toward Communist China (1949-71).

The U.S. had a policy of isolationism toward the Soviet Union (1918-33), and toward Communist China (1949-71).

See [[America First Committee]] for the 1940-41 debate on avoiding American entry into [[World War II]] in Europe.

Starting in 1933 with the [[World Economic Conference]], American public opinion and national policy policy was to minimize the risk of entering another war by isolationist laws, such as the Neutrality Laws.  President [[Franklin D. Roosevelt]], started in late 1937 to reverse the isolationist policies.  When [[World War I]] began in late 1939, the U.S. was officially neutral but gave significant military aid to Britain, France and China. It was only after the bombing of [[Pearl Harbor]] in December 1941 that the United States abandoned its isolationism and entered the war. See [[America First Committee]] for the 1940-41 debate on avoiding American entry into [[World War II]] in Europe.

==Asia==

==Asia==

[[History of Japan|Japan]] had a rigorously enforced policy that isolated the country from nearly all foreign contacts in the Tokugawa period (1603 – 1867).

[[History of Japan|Japan]] had a rigorously enforced policy that isolated the country from nearly all foreign contacts in the Tokugawa period (1603 – 1867).

[[Korea]] was the "Hermit Kingdom" that largely cut itself off from all outside contacts until the 1880s.

[[Korea]] was the "Hermit Kingdom" that largely cut itself off from all outside contacts until the 1880s.