The Twelfth Fleet was formed, organizationally, in YE 33 following Battle of Yamatai. It was not commissioned for service until YE 34. Most of its personnel were volunteers to the Star Army of Yamatai who enlisted following the devastating battle over the Yamataian capital. It was nicknamed the “Striking Serpent” for its mascot and doctrine. Ships in the fleet were painted in an orange and green pattern. The Fleet was commanded by Taisho Kurita Shunsaku until he resigned in YE 35. In YE 36, the fleet was disbanded and its assets merged into Second Fleet.