Khe Sanh will stand in history, I am convinced, as a classic example of how to defeat a numerically superior besieging force by co-ordinated applicat… - William Westmoreland

Ironically, the North Vietnamese victory could have come much sooner. In view of the increasing commitment of American troops in the mid- and late 1960s, General Giap would have been well advised to abandon the big-unit war, pull in his horns to take away the visible threat to South Vietnam's survival, and thereby delude the Americans that they had already achieved their goal of making the South Vietnamese self-sufficient. President Johnson had given Giap that chance at the Manila conference of 1966 when he had announced that once "the level of violence subsides," American and other foreign troops would withdraw within six months. That would have been eight years before the eventual South Vietnamese defeat, long before the South Vietnamese armed forces would have had any claim to self-sufficiency. Making that offer at the Manila conference may well have been an effort by President Johnson to rid himself of the albatross of South Vietnam, whatever the long-range consequences. For once the United States had pulled out under those circumstances and Giap had come back, what American President would have dared risk the political pitfalls involved in putting American troops back in?

Forced in January 1973 by American pressure to to accept a cease-fire agreement that left well over 100,000 North Vietnamese troops inside South Vietnam and free access for tens of thousands more, South Vietnamese leaders surely had reason to believe that if their enemy seriously violated the agreement, the United States would interfere. Yet that was not to be. In the face of that grave psychological blow for the South Vietnamese, it required no military genius to assure South Vietnam's eventual military defeat.

Those of us in the military may have even underestimated the degree of support the American people still afforded the military, for a recent public opinion survey revealed that the military services are among the public institutions that the people trust most. For one looking back on thirty-six years of service in the United States Army, that is a rewarding thought. So, too, I am struck, upon reflection, by the unprecedented changes that occurred during those thirty-six years. From the World War I Stokes mortar and the Model 1897 French 75 artillery piece to sophisticated guided missiles; from the model 1902 rifle to the M-16; from carrier pigeons and Morse code telegraphy to walkie-talkies, computers, and sensors; from a private's pay of $21 a month and a second lieutenant's of $125 to today's private's pay of $344 a month and today's second lieutenant's of $634; through three wars and a number of police actions; from volunteer army back to volunteer army; and from isolationism to multiple international commitments. As one in the middle of the changes at various levels of command responsibility, I have always been impressed by the loyalty, flexibility, durability, and overall effectiveness of the United States Army. The traumatic experience of Vietnam was no exception.