2. Open door policy in China 1899-no foreign nation could block any other foreign nation from trading with China; instead, all of the countries had to respect China's right to self-rule
3. The statement was issued in the form of circular notes dispatched by U.S. Secretary of State John Hay
4. The Roosevelt Corollary was an addition to the Monroe Doctrine articulated by President Theodore Roosevelt in his State of the Union address in 1904 after the Venezuela Crisis of 1902.
5. The corollary states that the US will intervene in conflicts between European and Latin American countries to enforce legitimate claims of the European powers, rather than having the Europeans press their claims directly.
6. While the Monroe Doctrine had sought to prevent European intervention, the Roosevelt Corollary was used to justify US intervention throughout the hemisphere.
7. The Roosevelt Corollary took the Monroe Doctrine further by saying that Roosevelt had the right to exercise military force in Latin American countries in order to keep European countries out.
8. The Marshall Plan was an American initiative to aid Europe in economic support to help rebuild European economies after the end of World War II.
9. The plan is named for Secretary of State George C. Marshall, who announced it in a commencement speech at Harvard University in 1947.
10. The Nixon Doctrine (also known as the Guam Doctrine) was put forth in a press conference in Guam on July 25, 1969 by U.S. President Richard Nixon.
11. He stated that the United States henceforth expected its allies to take care of their own military defense, but that the U.S. would aid in defense as requested.
12. The policy declared by President Nixon stated that the U.S. would supply arms but not military forces to its allies in Asia and elsewhere.
13. He tried to adapt U.S. foreign policy to the pressures of the Vietnam War, which were stretching the military's ability to meet America's global commitments.
14. The Truman Doctrine of containment was a United States policy to stop Soviet expansion during the Cold War.
15. President Harry S. Truman established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces.
16. The Truman Doctrine reoriented U.S. foreign policy, away from its usual stance of withdrawal from regional conflicts not directly