The 2dn island of the Military Archipelago. It trains its recruits in the best forms of aquatic combat and inter-ship combat in the world. Some of the best cannon marksmen come from here and many of the world's top navigators were trained here. All of the trainees and instructors wear blue Marine uniforms with a white ascot, kind of like a negative of the normal ones.

Actually a very small base with a specially built connection to a sky island that acts as the rest of the base for training. Trainees must learn parachuting, air combat, and general piloting of flying machines, many of which are powered by dials. This is the main force of the Marines that travel to sky islands and the only one trained with dials. Their color is red, with white ascots. They are often called "the Red Barons."