At the end of the Russo-Japanese war, the ship was transferred to the Baltic in early 1906 and helped to suppress the Sveaborg Rebellion on 1 August. Around 1906, her fighting top was removed and her superstructure was cut down. The 75-millimetre guns in the superstructure were apparently removed as well. "Tsesarevich" made regular winter cruises to the Mediterranean before World War I and aided survivors of the Messina earthquake in December 1908. In 1909–1910 the ship's machinery was and her amidships casemated 75-millimetre guns were removed and plated over four years later. "Tsesarevich" was not very active during the early part of World War I and she reportedly received two 37-millimetre anti-aircraft guns during the war.