Dmitrii Donskoi was an armoured cruiser built for the Imperial Russian Navy in the early 1880s. She was designed as a commerce raider and equipped with a full suite of sails to economize on coal consumption. The ship spent the bulk of her career abroad, either in the Far East or in the Mediterranean.

The Battle of Tsushima, also known in Japan as the Battle of the Sea of Japan , was the final naval battle of the Russo-Japanese War, fought on 27–28 May 1905 in the Tsushima Strait. A devastating defeat for the Imperial Russian Navy, the battle was the only decisive engagement ever fought between modern steel battleship fleets and the first in which wireless telegraphy (radio) played a critically important role. The battle was described by contemporary Sir George Clarke as "by far the greatest and the most important naval event since Trafalgar".