The 1968 Offensive, also known as the Tet Offensive, was a major military campaign launched by the Viet Cong and North Vietnamese forces against South Vietnam and the United States. The offensive began on January 30th, 1968, during the Vietnamese New Year, or Tet, and lasted until late September of that year. The Tet Offensive was a surprise attack that caught the U.S. and South Vietnamese forces off guard, resulting in heavy losses for both sides. Despite the heavy losses, the Tet Offensive ultimately failed to achieve its objectives, and the war continued until 1975.