Kangoku Senkan - Hidou No Sennou Kaizou Koukai

The officers Naomi Evans and Rieri Bishop, are part of this anime which is happening on a battleship. Other characters are the major Donny Bohgdan and there are other crew members too. The name of the battleship is Jasant. There may be a war going on, but people end up having sex to pass the time on the ship.