Japanese battleship Ise
On 12 April 1922, while at Yokohama, "Ise" hosted a delegation which included the Prince of Wales (the future King Edward VIII), who was accompanied by his second cousin, the future Lord Mountbatten of Burma. Captain Kanna Norikazu relieved Nagasawa on 1 December. The ship aided survivors of the Great Kantō earthquake in September 1923. From the early 1920s through the late 1930s, "Ise" mostly cruised off the coast of China. Little detailed information is available about her activities during the 1920s, although she helped sink the obsolete destroyer during gunnery training on 10 August 1926. The ship was overhauled in 1928–1929, during which her forward superstructure was enlarged and her aviation facilities improved.
Ise-class battleship
The "Ise" class were the only Japanese battleships to place the powder magazine above the shell magazine as the IJN wished to put as much space as possible between the highly flammable propellant and mine and torpedo detonations. The danger from plunging shells at long distances was not appreciated until the fatal magazine explosions of three British battlecruisers during the 1916 Battle of Jutland graphically demonstrated the point. To further protect the magazines the depth of the double bottom was increased to a total of underneath the barbettes and magazines. Additionally, the vessels contained 660 watertight compartments to preserve buoyancy in the event of battle damage. In addition to the torpedo bulge added when the ships were modernized, the deck armour over the machinery and magazines was increased to a total thickness of 140 mm. Inside the original skin of the ships, two torpedo bulkheads were also added and the turret roofs were increased to a total of of armour.