After the war, at the strong request of Stalin, the Allies distributed the large surface ships remaining after the surrender of Japan.The Soviet Union was lucky enough to draw the top prize, the Battleship Nagato.People's Commissariat of the Shipbuilding Industry and People's Commissariat of the Navy both opposed the continued use of the ship,But Comrade Stalin decided to repair and renovate the ship.In 1947, after emergency repairs, the Nagato sailed for Leningrad after a three-month-long voyage under Soviet and partly retained Japanese crews, and entered the Ordzhonikidze shipyard for overhaul and renovation, and was renamed the Petropavlovsk.Despite American obstruction, the Soviets were able to gather the seven spare barrels and hundreds of rounds of 410mm main gun ammunition they needed.The Soviets undertook a major reconstruction of Nagato, replacing the project 68-K Light cruiser's boilers and main engines, removing the gun outline, rebuilding the new hull structure on the side, installing six SM5-1 100mm high level dual purpose guns and corresponding turret wells and ammunition stores, the superstructure was almost completely removed and rebuilt, the platform and sighting equipment on the tower mast was removed and replaced with the original production for the project 23 battleship's Fire control system.Due to the different unit systems of Soviet and Japanese shipbuilding and the lack of drawings and related materials, the project was very difficult and slow.When Stalin passed away in 1953, the Petropavlovsk was still in unfinished service and the newly appointed leader Khrushchev did not like the ship, which he considered obsolete, and was ready to decommission and dismantle it. Comrade Gorshkov, who replaced the dismissed Kuznetsov as commander of the Soviet Navy, found a task for the ship that suited the leader's taste, carrying nuclear shells as a fire support ship for Landing and Offshore Defense.This motion allowed the ship to survive the nuclear war era and remain in service.Upon completion of her conversion, the Petropavlovsk entered service with the Red Flag Baltic Fleet, and for a time served as the flagship of the Baltic Fleet due to the fleet command facilities she carried. During her service, the Petropavlovsk underwent a series of modifications, including increased anti-aircraft firepower, updated radar, long-range communications equipment and antennas, and remained in service until the late 1970s.In 1980 the Petropavlovsk was converted into a training ship, decommissioned and sealed in 1985, and sold to India for dismantling in 1987. Although the Japanese side tried to buy the ship through various channels, the Japanese right-wing foolishly caused a conflict over the South Kurils islands at this time leading to a breakup, and in 1988 Nagato was towed to India, ran aground on the beach at Alang and was dismantled.