"Andrea Doria" saw no major action in World War I, and served extensively in Mediterranean in the 1920s and 1930s. She was involved in the suppression of rebels in Fiume and the Corfu incident in the 1920s. Starting in 1937, "Andrea Doria" underwent an extensive modernization, which lasted until 1940. She saw relatively little action during World War II; she was tasked with escorting convoys to Libya throughout 1941 and into 1942, during which she engaged in the inconclusive First Battle of Sirte. After the Armistice in September 1943 the ship was sailed to Malta and interned by the Allies. She remained there until 1944, when she was permitted to return to Italian ports. "Andrea Doria" survived the war and soldiered on in the post-war navy as a training ship until 1956. Paid off in September, she was formally stricken from the naval register on 1 November and sold for scrapping later that year.