Mashū-class replenishment ship
The Mashū-class is a series of replenishment oilers of the Japan Maritime Self-Defense Force. They were built from 2002-04. The ships have the hull designator AOE.
The Mashū-class was designed as an enlarged, improved version of the Towada-class fast combat support ships. The vessels are capable of mounting two Phalanx CIWS by design. They have been in commission from 2004 onwards.