Killbox Pocket Manga (2006)

"Killbox" is the military term for enemy territory that is target-rich. Deadly force is authorized for anything that moves inside "the box." Marine Corps tank commander Lalone leads his men into the heart of battle to deliver humanitarian supplies. When the enemy advances, his escape route is cut off. Trapped behind enemy lines and inside the killbox, the tankers must face off against brutal warlords, warring factions, snipers and wily female missionaries sabotaging their every move. Can this tank crew survive their first foray into the Killbox, the most dangerous place on Earth?