At a speech at Tulane University, President Gerald Ford says the Vietnam War is finished as far as America is concerned. "Today, Americans can regain the sense of pride that existed before Vietnam. But it cannot be achieved by re-fighting a war." This was devastating news to the South Vietnamese, who were desperately pleading for U.S. support as the North Vietnamese surrounded Saigon for the final assault on the capital city.
The North Vietnamese had launched a major offensive in March to capture the provincial capital of Ban Me Thuot (Darlac province) in the Central Highlands. The South Vietnamese defenders there fought very poorly and were quickly overwhelmed by the North Vietnamese attackers. Despite previous promises by both Presidents Richard Nixon and Gerald Ford to provide support, the United States did nothing. In an attempt to reposition his forces for a better defense, South Vietnamese President Nguyen Van Thieu ordered his forces in the Highlands to withdraw to more defensible positions to the south. What started out as a reasonably orderly withdrawal soon degenerated into a panic that spread throughout the South Vietnamese armed forces. The South Vietnamese abandoned Pleiku and Kontum in the Highlands with very little fighting and the North Vietnamese pressed the attack from the west and north. In quick succession, Quang Tri, Hue, and Da Nang in the north fell to the communist onslaught. The North Vietnamese continued to attack south along the coast, defeating the South Vietnamese forces at each encounter.
As the North Vietnamese forces closed on the approaches to Saigon, the politburo in Hanoi issued an order to Gen. Van Tien Dung to launch the "Ho Chi Minh Campaign," the final assault on Saigon itself. Dung ordered his forces into position for the final battle.
The South Vietnamese 18th Division made a valiant final stand at Xuan Loc, 40 miles northeast of Saigon, in which the South Vietnamese soldiers destroyed three of Dung's divisions. However, the South Vietnamese finally succumbed to the superior North Vietnamese numbers. With the fall of Xuan Loc on April 21 and Ford's statement at Tulane, it was apparent that the North Vietnamese would be victorious. President Thieu resigned and transferred authority to Vice President Tran Van Huong before fleeing Saigon on April 25.
By April 27, the North Vietnamese had completely encircled Saigon and began to maneuver for their final assault. By the morning of April 30, it was all over. When the North Vietnamese tanks crashed through the gates of the Presidential Palace in Saigon, the South Vietnamese surrendered and the Vietnam War was officially over.