Должно быть два батальона морской пехоты при 16 Ка-Ми.
А здесь пишут по другому. Но не факт, что это истина, много ошибок в тексте.
"...The army was represented by 73rd Infantry Brigade of the 91st Infantry Division (4 battalions of infantry) under gen Iwao Sugino, 2 divisional artillery battalions, an anti aircraft battalion, the 11th Tank Regiment plus 2nd independent tank company (over 60 tanks in total) under colonel Zueo Ikeda, a divisional sapper unit and a 320mm spigot mortar coy (4 tubes) of capt Genichi Ogura’s 18th Independent Mortar Battalion. The army air arm was represented by 4 Ki 43III (Oscar) fighter planes of 54 Air Regiment based on the Imizaki Navy airfield near Kataoka. More Ki 43 and Ki 44 (Tojo) fighters were available on the adjacent island of Paramushir.
The navy was represented by 32nd AA unit of 18 men and by 151 guard unit (942) which contained a company of 10 Ka-Mi swimming tanks. They were protecting the Navy’s Kuril Base Unit HQ, 12th Air Fleet HQ and the 42-man strong Shimushu signals Unit. The navy air arm had, by 1945, only a modest representation – up to 19 A6N (Zero) fighters (of Hokuto Kokutai), 4 B5N2 (Kate) and 1 B6N (Jill) light bombers (of 203 Kokutai), maintained and operated by 189 ground and air crew. Kataoka-Imizaki also sported facilities on the harbour for the massive H6K2 (Mavis) flying boats but it is almost certain that none remained there by August 1945. It would also appear that Miyoshino airfield in the centre of the island, which flew B5N2 and G3M (Nell) Navy bombers as well as Ki 43 army fighters earlier in the war, had no operational planes by August 1945..."