In response to American appeals for physicians to help in Vietnam in 1966, Dr. Hamilton volunteered and was accepted. He kept a record of his experiences. His daily chronicle covers the main period of the warÕs escalation of military force on all sides - American, NLF, and NVA Ð allowing readers to experience a vivid sense of the tragic momentum with which the war drove itself toward the Tet Offensive of late January and February 1968.