This report provides a detailed and graphic account of events as they unfolded. It centers about the 26th Marine Regiment, the main defenders of the Khe Sanh area, who tenaciously and magnificently held off the enemy during the two-and-one-half-month siege. Yet the battle of Khe Sanh was an inter-Service and international operation. Consequently, appropriate coverage is given to the contributions of the U.S. Army, Navy, and Air Force, and to South Vietnamese regular and irregular military units, all of whom contributed to the defense of the area and to the destruction of the enemy. As Marine artillery from within the fortified positions pounded the enemy, Army artillery located to the east provided heavy, long-range fire support. Fighter aircraft from the Marines, Air Force, and Navy provided continuous close air support, while B-52 bombers of the Strategic Air Command dealt decisive blows around-the-clock to enemy forces within striking distance of our positions and against enemy supply areas. Further, Marine and Air Force airlift together with Army parachute riggers logistically sustained the defenders during the siege despite heavy enemy antiaircraft fire. In early April, when the weather cleared and the troop and logistic buildup was completed, a combined force of U. S. Army, U. S. Marine, and Republic of Vietnam units, coordinated by the U. S. Army's 1st Cavalry Division (Airmobile), maneuvered to link up with the 26th Marines and rout the remaining enemy elements. Meanwhile, U. S. Marine Corps engineers expeditiously opened Highway 9 to the plateau. The crushing defeat suffered by the North Vietnamese Army during the siege cost the Communists untold casualties, shattered two of their best divisions, and frustrated their dream of a second Dien Bien Phu. The battle of Khe Sanh is but one facet of the long and complicated war in South Vietnam. It is one in which the aggressive nature of North Vietnam, the resolute determination of our fighting forces, and the local defeat of the armed enemy can all be clearly seen. [Illustration: Handwritten Signature] W. C. WESTMORELAND General, United States Army PREFACE In the extreme northwestern corner of South Vietnam there stands a monument to the free world. Unlike those which commemorate the victories of past wars, this one was not built on marble or bronze but the sacrifices of men who fought and died at a remote outpost to halt the spread of Communism. This is the story of those men--the defenders of Khe Sanh--and the epic 77-day struggle which not only denied the North Vietnamese Army a much needed victory but reaffirmed to the world the intention of the United States to hold the line in Southeast Asia. In addition to having been a contest of men and machines, this was the test of a nation's will.