Japanese battleship Haruna
was a warship of the Imperial Japanese Navy during :World War I and :World War II. Designed by the British naval engineer George Thurston and named after Mount Haruna, she was the fourth and last battlecruiser of the , amongst the most heavily armed ships in any navy when built. Laid down in 1912 at the Kawasaki Shipyards in Kobe, Haruna was formally commissioned in 1915 on the same day as her sister ship, . Haruna patrolled off the Chinese coast during World War I. During gunnery drills in 1920, an explosion destroyed one of her guns, damaged the gun turret, and killed seven men. During her career, Haruna underwent two major reconstructions. Beginning in 1926, the Imperial Japanese Navy rebuilt her as a battleship, strengthening her armor and improving her speed and power capabilities. In 1933, her superstructure was completely rebuilt, her speed was increased, and she was equipped with launch catapults for floatplanes. Now fast enough to accompany Japan's growing carrier fleet, Haruna was reclassified as a fast battleship. During the Second Sino-Japanese War, Haruna transported Imperial Japanese Army troops to mainland China before being redeployed to the 3rd Battleship Division in 1941. On the eve of the