In Southeast Asia, the United States government used the domino theory to justify its support of a non-communist regime in South Vietnam against the communist government of North Vietnam, and ultimately its increasing involvement in the long-running Vietnam War (1954-75).
The number of voting representatives in the House is fixed by law at no more than 435, proportionally representing the population of the 50 states.
Among other duties, representatives introduce bills and resolutions, offer amendments and serve on committees. The number of representatives with full voting rights is 435, a number set by Public Law 62-5 on August 8, 1911, and in effect since 1913. The number of representatives per state is proportionate to population. Article 1, Section 2 of the Constitution provides for both the minimum and maximum sizes for the House of Representatives.