In the first year of World War I, "Andrei Pervozvanny" and "Imperator Pavel I" formed the core of the Baltic Fleet. For most of the war they remained moored in the safety of Sveaborg and Helsingfors. Idle, demoralized ratings subscribed to Bolshevik ideology and on took control of the ships in a violent mutiny, killing many of their officers in the process. The battleships participated in the Ice Cruise of 1918, and "Andrei Pervozvanny" later helped to put down the Krasnaya Gorka fort mutiny of 1919. After the Kronstadt rebellion of 1921, the Bolshevik government lost interest in maintaining the battleships, and they were scrapped beginning in November–December 1923.