Regents Prep: U.S. History: Foreign Policy:
Isolationism
Following our involvement in World War One, the United States entered a nearly two decade long period of isolation from world affairs. The result was not only a rejection of leadership and membership in international organizations, but a restricting of our borders and an anti-foreign feeling among society.

US Rejects the Treaty of Versailles and the League of Nations
The United States Senate rejected the Treaty of Versailles for a variety of reasons. Politically, Democratic President Woodrow Wilson was unpopular with the Republicans who controlled the Senate. He had also failed to gather any input from them in negotiating the treaty and stubbornly refused to allow changes. Wilson's poor health also stopped his active campaigning for the treaty among the American people.

The provision that the Senate objected to the most was US membership in the League of Nations. The league was the creation of Wilson and was intended as an international peace-keeping organization, intended to prevent the reoccurrence of a wide scale conflict like the "War to end all wars" (WWI). Many were uneasy at the provisions of the League that called for common defense and the possible command of US forces by foreign leadership. These oppositions, along with the public's desire to distance the US from foreign affairs, lead to the rejection of US membership.

Without strong support from the US, the League seemed doomed for failure from the start and never achieved the lofty goals of world peace intended by its creator.

US Isolationism Takes Hold at Home
Restriction of Immigration -
The United States had always been a nation formed by and for immigrants. The heritage of the nation is one of providing an opportunity for peoples from all over the world to strive for a better life in America. However, during the isolationist policies that followed the First World War, many called for a curbing of immigration as a way to reduce foreign influence on the nation.
Laws such as the Immigration Act of 1924 and the Emergency Quota Act severely restricted the numbers of immigrants allowed into the country.

Protectionist Policies - In an attempt to protect US businesses and curtail economic ties with much of the world, the US instituted a series of high tariffs in the 20's and 30's that limited imports. The reaction of many nations was to pass retaliatory tariffs on US products, resulting in a general breakdown of international trade. This isolation from the world economically would eventually be one of the contributing factors in the causing the Great Depression of the 1930's.