The name given to the idea that if Vietnam fell to communism, the rest of Southeast Asia <span>would become communist was "domino theory," since this resembled falling dominos. </span>
The term was coined during the presidency of Truman and his Truman Doctrine.
The Truman Doctrine during the Cold War focused on a policy of containment of Soviet Union. The Domino thoery believed that if one country fell under the influence of the Soviet Union, it will pave the way for others.
The Truman Doctrine was publicised ont he 12th of march, 1947 and ushered in an Era of extreme competition between the United States and Soviet Union.
Many Scholars attribute the Vietnam War to the United States policy of containment.
According to Wikipedia South Carolina became the first state to declare its secession from the Union on December 20, 1860, with the Declaration of the Immediate Causes Which Induce and Justify the Secession of South Carolina from the Federal Union and later joined with the other southern states in the Confederacy.
Although initially disregarded by the great powers of Europe, the Monroe Doctrine became a mainstay of U.S. foreign policy. In 1823 U.S. President James Monroe proclaimed the U.S. protector of the Western Hemisphere by forbidding European powers from colonizing additional territories in the Americas.
The effects of Porfirio Diaz rule have on Mexico in the modernized Mexico economy and industry and the International business invested in mines in northern Mexico