McNeill while recuperating from his injuries and dengue fever, hepatitis, and malaria on Mindoro Island, following the battle of Corregidor. After returning to Mindoro, the 503rd was alerted for another combat jump, this time in the central Philippines to reinforce the 40th Infantry Division in its fight on Negros island. However the jump was canceled and the combat team landed amphibiously on 7 April 1945. It would spend the remainder of the war conducting mopping up operations on the island, often against fanatical enemy resistance; notably, one of the Japanese units the 503rd fought was the remnants of the battered 2nd Raiding Brigade of Japanese paratroopers. After Japan's surrender in August 1945, over 6,150 Japanese soldiers surrendered to the 503rd, although some continued to hold out until October. Post-WWII history Inactivated at Camp Anza, California, in December 1945, it was reactivated and redesignated as the 503rd Airborne Infantry Regiment in February 1951 and assigned to the 11th Airborne Division at Fort Campbell, Kentucky, following the departure of the 187th Airborne Infantry Regiment to Korea as a separate airborne regimental combat team. In 1956 the 503rd went with the rest of the 11th Airborne Division to posts in southeastern Germany. The 503rd was relieved on 1 March 1957 from assignment to the 11th Airborne Division and was concurrently reorganized and redesignated as the 503rd Infantry, a parent regiment under the Combat Arms Regimental System. This year marked the point during which infantry regimental numbers ceased indicating actual tactical units but instead were used in designating battle groups of Pentomic divisions, which did not have regiments and battalions. On 1 July 1958 the 11th Airborne Division was inactivated and its personnel and equipment reflagged as the 24th Infantry Division; however, two of the division's five battle groups remained on jump status with Airborne designations: the 1st Airborne Battle Group, 187th Infantry, and the 1st Airborne Battle Group, 503d Infantry. This was a short-term assignment, however, and on 7 January 1959 1-503d was relieved from assignment to the 24th Infantry Division and assigned to the 82d Airborne Division at Fort Bragg. The move was accompanied by the rotation of the only other airborne battle group, 1-187th, from the 24th to the 82nd. Concurrently 1-504th and 1-505th were relieved from the 82nd and assigned to the 8th Infantry Division in central Germany. At Fort Bragg, 1-503rd joined 2-503rd, already assigned to the 82nd, as