Two areas of operations were suggested to divide the entire region, given the mountainous terrain of Negros, a dominant terrain feature that ran north to south of the island, and the planners chose to seize the western portion, including Northwestern Negros and Panay island, which was named VICTOR I. Lt. Gen. Robert L. Eichelberger, the Eighth Army commander, appointed the 40th Infantry Division, a California National Guard formation and veterans of the recent fighting in Luzon under Maj. Gen. Rapp Brush, with the 503rd Parachute Regimental Combat Team in reserve.