 Based in the Hát Dịch in north west Phước Tuy with three battalions—D800, D265 and D308—it numbered 2,000 men.The 275th Regiment was based in the Mây Tào Mountains and mainly operated in the east of the province.Commanded by Senior Captain Nguyen Thoi Bung (aka Ut Thoi), it consisted of three battalions—H421, H422 and H421—with a total of 1,850 men.