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.
Answer Wiki. Each member of the House of Representatives represents approximately 733,103 people on average. As of 2015, there are 318.9 million Americans, so with 435 members of the House of Representatives, that gets you to 733,103 Americans/district. The actual number in each district can be more or less, depending on the state and how the district lines were drawn.