Japanese battleship Mikasa.

 Mikasa is a pre-dreadnought battleship built for the Imperial Japanese Navy (IJN) in the late 1890s. The ship served as the flagship of Vice Admiral Tōgō Heihachirō throughout the Russo-Japanese War of 1904–1905, including the Battle of Port Arthur on the second day of the war and the Battles of the Yellow Sea and Tsushima. Days after the end of the war, Mikasa's magazine accidentally exploded and sank the ship. She was salvaged and her repairs took over two years to complete. Afterwards, the ship served as a coast-defence ship during World War I and supported Japanese forces during the Siberian Intervention in the Russian Civil War.

After 1922, Mikasa was decommissioned in accordance with the Washington Naval Treaty and preserved as a museum ship at Yokosuka. She was badly neglected during the post-World War II Occupation of Japan and required extensive refurbishing in the late 1950s. She has been partially restored, and is now a museum ship located at Mikasa Park in Yokosuka. Mikasa is the last remaining example of a pre-dreadnought battleship anywhere in the world and also the last example of a British-built battleship.

IJN Mikasa at Vickers Yard UK.

After the Sino-Japanese war(1895), the Imperial Japanese Navy started a 10 year build up programme with 6 battleships and 6 cruisers. Lacking the technology and capability at the time to construct its own, Japan turned to the UK. Design of the Mikasa was a modified version of the Formidable class of warships of the Royal Navy.