Kasuga-class cruiser

The Kasuga-class cruiser (春日型巡洋艦) was a class of two armored cruisers of the Imperial Japanese Navy (IJN) based on the Giuseppe Garibaldi-class cruisers developed by Italy at the end of the 19th century.

Background
The Italian Giuseppe Garibaldi-class design was a private venture by Gio. Ansaldo & C., which was hoping to profit from the need for the world's navies to modernize towards heavily armored steam warships. The design was so popular that between 1894 and 1902 ten cruisers were purchased by four different countries: The first five by the Italian Navy, four by the Argentine Navy and one by the Spanish Navy.

There is a disagreement in sources as to who originally ordered these ships. Conway's All the World's Fighting Ships states that they were ordered by the Italian Navy, while naval historian Robert Scheina writes that it was actually Argentina. In any case, Argentina originally planned to name them Mitre and Roca, then Rivadavia and Mariano Moreno, before they sold them to the Imperial Japanese Navy before final completion in 1904, where they were renamed the JAPANESE CRUISER Kasuga and JAPANESE CRUISER Nisshin.

Design
Designed by Edoardo Masdea, the Garibaldi-class cruiser was a hybrid between a cruiser and a battleship. At 20 kn maximum speed, the design was slightly slower than contemporary cruisers, but was very heavily armed and also heavily armored, in a package with very low displacement and moderate dimensions.

The class was unusual in that they did not have a uniform main armament. Some had single 10 in guns in gun turrets fore and aft; others (including the Kasuga) had a mixed armament of a single 10 in gun in one turret and another turret with twin 8 in guns. A third variation (including Nisshin) was a uniform armament of four 8 in guns, twin gun turrets fore and aft.

[[JAPANESE CRUISER Kasuga]]
Kasuga was originally to be named Mitre but was renamed as Rivadavia by Argentina. She served in the Russo-Japanese War and took part in the Battle of the Yellow Sea and again at the Battle of Tsushima. After 1922, she was partially disarmed as part of the Washington Naval Treaty and used as a training ship. She was bombed and sunk by US Navy carrier aircraft at Yokosuka 18 July 1945, raised and scrapped in 1948.

[[JAPANESE CRUISER Nisshin]]
Nisshin was originally to be named Roca but was renamed as Mariano Moreno by Argentina. She served in the Russo-Japanese War and was severely damaged during the Battle of the Yellow Sea and again at the Battle of Tsushima. After 1922, as part of the Washington Naval Treaty she was partially disarmed and used as a training ship. Nisshin was finally expended as a target and sunk in 1936.

Afterwards
The success of the Japanese Navy in using armored cruisers in the line of battle during the Russo-Japanese War of 1905 drew considerable attention from navies and ship designers worldwide. The armored cruiser design soon evolved into the dreadnought armored cruiser, which became known as the battlecruiser.