In the Anime series Mobile Suit GUNDAM: Iron Blooded Orphans you have the continuation of the war between Earth and Mars in all its depth and complexity. The Martian independence movement has gained an important supporter in the person of Kudelia, daughter of one of the major terrestrial governing families on the red planet. She has chosen the child soldiers to escort her to Earth, and the are abandoned by the adults looking to save themselves when the assassination teams arrive. The consequences could be much different than the ruling houses on both planets would ever wish. If you are not already a fan of the Gundam franchise, this might be the series that opens your eyes and brings you on board.