Japanese battleship Ise
Despite the expensive reconstruction, the ship was considered obsolete by the eve of the Pacific War, and did not see significant action in the early years of the war. Following the loss of most of the IJN's large aircraft carriers during the Battle of Midway in mid-1942, she was rebuilt with a flight deck replacing the rear pair of gun turrets to give her the ability to operate an air group of floatplanes; lack of aircraft and qualified pilots meant that "Ise" never actually operated her aircraft in combat. She participated in the Battle of Cape Engaño in late 1944, where she decoyed the American carrier fleet supporting the invasion of Leyte away from the landing beaches. Afterwards the ship was transferred to Southeast Asia; in early 1945 "Ise" participated in Operation Kita, where she transported petrol and other strategic materials to Japan. The ship was then reduced to reserve until she was sunk during American airstrikes in July. After the war "Ise" was scrapped in 1946–1947.
Japanese battleship Ise
The 4th Carrier Division was disbanded on 1 March and "Ise" was reduced to first-class reserve. From this time until the surrender of Japan, "Ise" remained docked at Kure, without fuel or aircraft, and repainted in an olive green camouflage with vari-coloured splotches. The camouflage was not effective against American carrier-based aircraft from Task Force 58 (TF 58) on 19 March, when more than 240 aircraft attacked Kure and "Ise" was hit by two bombs. Re-designated as a fourth-class reserve ship on 20 April, "Ise" was towed to the island of Ondo Seto (between Kure and Kurahashijima) to serve as a floating anti-aircraft battery. She was attacked again on 24 July by 60 carrier-based aircraft, whose bombs hit the starboard bow, flight deck, main deck, No. 3 turret and bridge, killing Mutaguchi, other bridge personnel, and around 50 crewmen; many other crewmen were wounded. The ship settled by the bow and it took three days to pump her dry and the IJN planned to drydock "Ise" for repairs. On 28 July she was struck by five bombs dropped by F4U Corsair fighters from , and eleven more bombs dropped by other aircraft from TF 58. Later that day an attack by 18 USAAF Consolidated B-24 Liberator heavy bombers was unsuccessful. "Ise" took on a 15° list to starboard and sank in shallow water. Salvage efforts were abandoned that same day, although some AA guns were stripped from her wreck. The ship was struck from the Navy list on 20 November. The underwater portion of "Ise"s wreck was ignored until the following year and she was scrapped in place by the Kure Dockyard of the Harima Zōsen Corporation from 9 October 1946 to 4 July 1947.