The United Empire of Earth Navy (UEEN) is the largest branch of the Human armed forces. It is responsible for the operation of Human capital ships, support craft, and fighters and the maintenance thereof. The UEE Navy is headed by the Legatus Navium, who represents the branch in the military High Command. It is headquartered at MacArthur (Kilian V) in the Kilian system. The Navy is responsible for operations outside of UEE territory in a time of war and acting as an additional security presence to support law enforcement within the UEE’s borders.