at League Island in Philadelphia. In the summer of 1940, S-32 began reactivation. Recommissioned on 18 September 1940 and assigned to Submarine Division 52, S-32 conducted trials from New London through November 1940 and, in December 1940, proceeded to the Panama Canal Zone, from which she operated until April 1941. She then returned to New London but, toward the end of April 1941, she moved to Bermuda. Through May 1941, she patrolled and conducted training exercises out of the base at St. George, Bermuda, that the United States had acquired from the United Kingdom in the Destroyers for Bases Agreement of 2 September 1940. In late June 1941, S-32 returned to New London and resumed exercises. In September 1941, she moved to Philadelphia for an overhaul and, by December 1941, she was back at New London. World War II First, second, and third war patrols The Japanese attack on Pearl Harbor brought the United States into World War II on 7 December 1941, and early in 1942 S-32 received orders to return to the Panama Canal Zone. She arrived at Coco Solo, Panama, in February 1942. During the spring of 1942, she conducted two defensive war patrols in the Pacific approaches to the Panama Canal. On 3 June 1942, the Aleutian Islands campaign began with the Battle of Dutch Harbor, followed quickly by the Japanese occupation of Attu and Kiska. In June 1942, S-32 proceeded to San Diego, California, en route to the Aleutian Islands. In early July 1942, she arrived at Dutch Harbor on Amaknak Island off Unalaska in the Aleutians, and on 7 July 1942 she departed Dutch Harbor on her first offensive war patrol and third patrol overall. She patrolled the fog-covered waters of the Rat Islands and Amchitka into August 1942, then shifted to an area north of Attu. She returning to Dutch Harbor on 10 August 1942. Fourth war patrol On 22 August 1942, S-32 departed Dutch Harbor on her fourth war patrol. Moving westward, she hunted for Japanese ships in the sea lanes between Kiska and Attu during the first week of the patrol. On 28 August, leaks developed in her after trim tank, but her crew compensated for them by placing of water in the forward trim tanks. Although this meant that space was left to accommodate water for only one torpedo reload, S-32′s crew regained depth control, and with fuel suction shifted