Dark Shell: Lust in the Cage

At the end of Wwii, after dividing up the nation, the countries that defeated Japan didn't rule this tropical isle. Consequently, many independent powers were established, fighting amongst the other and trying to seize control. They developed a hatred of just one another, leading the continent into a never-ending spiral of an civil war. Our story opens with a group of women under the protection of the range of sexually charged soldiers. The ladies along with the soldiers are kept in enemy territory, separated using their main force, and they must try to rejoin the principle force -- when they are to outlive world war 2.