Ranks of the Imperial Japanese Army a colonel in the army: "Taisa" (colonel), so the rank of "Rikugun Taisa" denoted an army colonel, while the rank of "Kaigun daisa" denoted a naval captain. Ranks of the Imperial Japanese Army The following tables present the rank insignia of the Imperial Japanese Army before and during World War II. These designs were worn on shoulders as passants (shoulder straps) between the years 1911 and 1938, then on collars afterwards until 1945, when the army was dissolved. The same officer ranks were used for both the Imperial Japanese Army and Imperial Japanese Navy, the only distinction being the placement
Royal Navy ratings rank insignia badge. In 1970 a new rank of Fleet chief petty officer was introduced, with insignia of the royal coat of arms on the lower arm (identical to a warrant officer class 1 in the army and RAF, to which the new rank was equivalent). This rank was renamed warrant officer, and then warrant officer class 1. In 2004 the rank of warrant officer class 2 was formed from those CPOs holding the appointment of charge chief petty officer. The insignia is a crown within a wreath, also worn on the lower arm. The badges are now worn on the shoulders