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.
The total number of seats in the House of Representatives was fixed at 435 by the Reapportionment Act of 1929, creating one congressional district for each 674,000 residents (approximately). Each state is guaranteed at least one Representative, regardless of population.he 2010 US Census resulted in the reapportionment of seats in the House to the number of representatives shown below for each state, beginning with the 113th Congress (2013-2014).