Blast - Ars Nova - Arpeggio of Blue Steel (Aoki Hagane no Arpeggio) Jumpchain CYOA

From the introduction: The oceans of planet Earth have been dominated by several fleets of mysterious AI-controlled battleships known as "The Fleet of Fog" - whose origins and greater motivations are unknown. Their technology is far advanced over that of humanity, though for reasons unknown their ships take the shape of WWII vessels.