The Tet Offensive of 1968 saw surprise attacks by Viet Cong and North Vietnamese forces across South Vietnam on the Tet holiday, as they attacked 68 cities and 50 towns. Though the offensive was eventually defeated, it lasted for up to two weeks and was bloody, with high casualties on both sides. The capture and mass burial of 1,000 civilians in Hue demonstrated the ferocity of the fighting. While a military defeat for the Viet Cong and North Vietnam, Tet had a powerful psychological impact on Americans, undermining confidence in the war and leading many to question how to exit Vietnam, with President Johnson replaced by Nixon two months later.