Drawing on a wide range of Vietnamese-language sources, the author presents a detailed account of the continuing efforts of North Vietnam to invade the South, enlivened by a large number of previously unpublished photographs, and colour profiles for modellers. A year after the Paris peace accord had been signed, on 17 January 1973, peace had not been settled in Vietnam. During that period, the North Vietnamese continued their attacks now that the United States had pulled out completely their forces, with the definitive conquest of South Vietnam as the goal. The South Vietnamese forces' erosion on the field increased in face of a Series of concerted North Vietnamese offensives at Corps level. The drastic American aid reduction began to impact heavily on the South Vietnamese ability to wage war.