Falcon (MOCHIZUKI Mikiya)

(from ebookjapan):

Tetsutaro Nambu, a.k.a. Falcon, a special agent of the Japanese Army, has defeated Colonel Hoffman, a chief of the JSDF, as an independent third party to save his country...But Colonel Hoffman is still alive! Hayabusa fights for freedom and peace!

Also includes a short story, "Unusual War Diary Action: Black Fighting Spirit".