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.
Determining Representation. There are 435 Members in the U.S. House of Representatives. They are apportioned, or divided proportionally, among the 50 states. The number of Representatives each state has is based on its populationâthe more citizens, the more Representatives.