General naval science covers subjects common to all aspects of naval science, including history, customs, strategy, tactics and specific methods (such as coastal defence and submarine warfare).
Navies are fleets of waterborne military vessels that form the branch of a nation's armed forces principally designated for naval and amphibious warfare (such as on rivers, lakes, coasts, and oceans).
Child portals: Royal Navy • United States Navy
Naval administration covers the running of navies and their personnel; the latter by rank (including enlisted, warrant officers and officers) and special cases (including minorities and women).
Naval maintenance covers maintenance, organisation, equipment, supplies, stores and provisions. This portal also includes Navy yards and stations.
Naval seamen covers subjects about shipboard personel, including small arms and small boat service.
Marines are members of an infantry force that specializes in naval operations such as amphibious assault.
Naval ordnance covers naval weapon systems as well as instructions, drills and target practice.
Minor services of navies covers subjects such as chaplains, coast guard, naval communication, naval aviation, medical service, public relations, war correspondents, and recreation.
Navigation is the theory, practice and technology of charting a course for a ship (or other vehicle). This portal also covers related subjects such as lighthouses and shipwrecks.
Child portals: RMS Titanic • Shipwrecks
Subclass VKA: Merchant marine
Merchant marine covers civilian merchant vessels that are registered in a country.