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.
Quick Answer. In the United States, a total of 435 members are elected into the House of Representatives every two years. This number used to change because it was dependent on the population of the states, but the number was fixed in 1911. Continue Reading.