"Richelieu" was part of the force that liberated Singapore and other parts of the Dutch East Indies following the official Japanese surrender in September, during which she detonated a magnetic mine but suffered little damage. She thereafter operated in French Indochina as part of the initial effort to restore French colonial rule. There, she provided fire support to French forces fighting in the colony during Operation Mapor. Recalled to France in December 1945, she was repaired and modernized slightly in 1946. Testing determined the cause of the shell dispersion issue and modifications were made to the turrets to delay the outer guns by 60 milliseconds, which corrected the problem. The ship saw relatively limited peacetime training in the immediate postwar years and in 1952, she was removed from active service for use as a gunnery training ship. In 1956, she was placed in reserve and was thereafter used as a stationary training vessel and barracks ship until 1967, when the French Navy decided to discard her. Sold for scrap in 1968, she was broken up in Italy from 1968 to 1969.