The outbreak of Communism in North Vietnam led to the United States defending South Vietnam from the spread of Communism by Ho Chi Minh.
The Strategic Arms Limitation Talks (SALT) were conducted between the United States and the Soviet Union (Russia) to agree on the disarming of nuclear weaponry.
The twenty-sixth amendment reduced the voting the voting age to 18, giving Americans more votes and bigger victories over political opponents.
The Watergate Scandal was a political scandal involving a break-in at the democratic committee at the Watergate Complex. The criminals involved were with the Nixon Administration, later leading to Nixon's resignation, giving the presidential power over to Gerald Ford.
The EPA helped protect human health and the environment of the United States.
A conflict between the Arabs and the Israelis that prompted the U.S to assist Israel, thinking that the war would cease to last.