Dog Soldier is a Seinen manga, from 1987-1992, by Tetsuya Saruwatari, who would later illustrate Riki-Oh and after that create High School Exciting Story: Tough. The main character is John Kyosuke Hiba, a former Green Beret living in poverty who, after become disillusioned with his Sociopathic Soldier commanding officer in The Vietnam War and quit the army, is hired/blackmailed by the Japanese government to do dangerous jobs. There were 12 volumes, with the first 3 having been scanlated. There is also an extremely obscure 1989 OVA titled Dog Soldier: Shadows of the Past. This manga is basically the American action movies of the The '80s in manga form. And yes, that is exactly as cool as it sounds.
Dog Soldier contains the following tropes:
- African Terrorists: Zardoz, founder and leader of the New Revolutionary Army.
- Barehanded Blade Block: Hiba does this once to stop a knife.
- Captain Ersatz: John Kyosuke Hiba is one of Rambo.
- Cold-Blooded Torture: Muammar Gaddafi carves a grid on Hiba's back and removes the skin.
- Gentle Giant / The Big Guy / Dumb Muscle: Fudo Masami.
- Groin Attack: Hiba cuts the member off of an attempted rapist.
- Hidden Badass: 7-year-old Morita Asao: Hires Hiba and Fudo to save his father, parachutes out of the plane, then, after his father is killed in front of him, sneaks a grenade into the prison, and walks THROUGH fire to stop Gaddafi's ICBM.
- Knife Fight: The OVA has one...sort of. Also present in the manga.
- Nuke 'em: Zardoz is willing to nuke Tokyo, while Muammar Gaddafi plans to use a massively powerful nuke on the West.
- One-Man Army: Hiba, of course (sometimes two-man, with Fudo).
- Perpetual Poverty: Hiba and Fudo.
- Rated M for Manly: As to be expected from a work whose main character is a Rambo lookalike.
- Shout-Out: Well, aside from Hiba looking like Rambo, the early villain Mister Harry looks REMARKABLY like Bennett, while one of Hiba's (former) partners is named Dutch.
- Sociopathic Soldier: Mister Harry is Col. Harry, Hiba's former commanding officer.
- Tragic Villain: Many of the enemies are this, or at least have a Freudian Excuse.
- Vitriolic Best Buds: Hiba and Fudo
- You Killed My Father: One of Zardoz's attacks killed Hiba's parents.