The correct answer to the question is Tet.
1. The Tet Offensive, which began on January 30, 1968, during the Vietnamese New Year holiday known as Tet, saw the Viet Cong attacking both American military bases and cities in South Vietnam.
2. This major offensive by the Viet Cong and North Vietnamese forces surprised the United States and its allies, as the attacks were widespread and coordinated, targeting not only military installations but also urban areas.
3. The Tet Offensive marked a turning point in the Vietnam War, as it led to a shift in public opinion in the United States against the war and intensified anti-war sentiments.
In summary, during the Tet holiday, the Viet Cong launched a series of attacks on American military bases and cities in South Vietnam, known as the Tet Offensive, which had significant implications for the course of the Vietnam War.
