Which country did Nixon invade without informing Congress? A. Cambodia B. Vietnam C. Thailand D. Burma

A. Cambodia

Richard Nixon, the President of the United States during the Vietnam War, ordered military operations in Cambodia without an official declaration of war and without formally notifying Congress at first. This occurred in 1970 and is known as the Cambodian Campaign or the Cambodian Incursion. The intention behind these actions was to attack North Vietnamese and Viet Cong bases that were being utilized to launch attacks into Vietnam. This move by Nixon caused controversy and led to significant protests within the United States.

The invasion of Cambodia is a significant event in U.S. history that contributed to widespread domestic protests and further mistrust between the American public and the government. It also led to changes in governmental procedures concerning war powers. In response to Nixon's actions, Congress passed the War Powers Resolution in 1973, which aims to check the president's power to commit the United States to an armed conflict without the consent of Congress. The resolution requires the president to notify Congress within 48 hours of committing armed forces to military action and forbids armed forces from remaining for more than 60 days, with a further 30-day withdrawal period, without a Congressional authorization for use of military force or a declaration of war by the United States. The invasion and its consequences also played a part in the atmosphere leading up to the Watergate scandal, which eventually led to Nixon's resignation.