It was the most spectacular battle of the entire war. For 6,000 trapped marines, it was a nightmare; for President Lyndon Johnson, an obsession. For General Westmoreland, it was to be the final vindication of technological weaponry; and for General Giap, the architect of the French defeat at Dien Bien Phu, it was a spectacular ruse masking troops moving south for the Tet offensive. In a compelling narrative, Robert Pisor sets forth the history, the politics, the strategies, and, above all, the desperate reality of the battle that became the turning point of the United States's involvement in Vietnam.