Long Binh Post was just a few miles south of Bien Hoa Air Base and was the largest Army base in South Vietnam. It was home of the 90th Replacement Battalion and the famous LBJ Stockade (aka LBJ Ranch). Long Binh's Camp Ray was also the site of SERTS (aka P Training) for newly assisgned 101st Airborne Division replacements that came through Bien Hoa Air Base.