Yakitori

so this is Yakitori: Soldiers of Misfortune! it's a great anime and manga. basically it follows Akira Ihotsu, a young man from Earth who enlists in the Trade Federation's expendable "Yakitori" foot soldiers to escape poverty after humanity's subjugation by an alien civilization. He joins the experimental K321 unit for a grueling training program on Mars before being sent on a diplomatic mission to a planet called Barka, where the team becomes entangled in a conflict against mole-like rebels resisting the Federation's exploitative deals.