I Corp [sic] covers the North Vietnamese campaign to take the northern part of South Vietnam in March 1975. The map is 16 by 28 hexes and covers the area from Dong Ha to Quang Tri. Combat is voluntary. Movement is constrained by a large number of special rules. There are other special rules for artillery, fuel supply, naval support, and civilian dislocation. An alternate scenario has the South Vietnamese 1st Parachutist Division not being withdrawn to Saigon.