Doctrines

Monroe Doctrine

President James Monroe warned foreign powers not to meddle in the Western Hemisphere

Truman Doctrine

A U.S. foreign policy established in 1947 pledging economic assistance and military aid to countries resisting communist influence

Marshall Plan

The recovery program to aid Western Europe following World War II

Nixon Doctrine

Policy at the end of the Vietnam War to provide arms and military equipment to countries fighting against Russian invasion

Carter Doctrine

Following 1979 invasion of Afghanistan, Persian Gulf area was in vital U.S. interest and the U.S. would fight to maintain access to it

Reagan Doctrine

The U.S. would provide military assistance to anti-communist groups fighting in the early Soviet era and peace groups

Bush Doctrine

The U.S. would use preemptive military action against another country or group planning to attack