Made up of 15 Provinces directly south of I Corps. II Corps stretched along the Laotian and Cambodian borders and formed the bulge along the seacoast of central South Vietnam. The major cities were Kontum, Pleiku, Ban Me Thout, Da Lat, Qui Nhon, Tuy Hoa, Nha Trang, and Cam Rahn Bay. The central highlands lie within II Corps. It is a sparsely populated area and the home of a significant percentage of the Montagnards of Vietnam. The heaviest fighting and most frequent combat occurred in the three northern provinces of the Corps, Kontum, Pleiku, and Binh Dinh. Combat in II Corps involved significant NVA units but also included large numbers of Viet Cong.