Long Khánh
In support was an artillery battalion equipped with 75 mm recoilless rifles (RCLs), 82 mm mortars, and 12.7 mm heavy machine-guns, an engineer battalion, a signals battalion and a sapper reconnaissance battalion, as well as medical and logistic units. Local forces included D445 Battalion, which normally operated in the south and in Long Khánh. Under command of Bui Quang Chanh (alias Sau Chanh), it consisted of three rifle companies—C1, C2, C3—and a weapons company, C4; a strength of 550 men. Recruited locally and operating in familiar terrain, they possessed an intimate knowledge of the area. Guerrilla forces numbered 400 men operating in groups of five to 60, with two companies in Châu Đốc district, one in Long Dat, and a platoon in Xuyên Mộc. In total, VC strength was estimated to have been around 4,500 men.