Naval ship

A naval ship (or naval vessel) is a military ship (or sometimes boat, depending on classification) used by a navy. Naval ships are differentiated from civilian ships by construction and purpose. Generally, naval ships are damage resilient and armed with weapon systems, though armament on troop transports is light or non-existent. Naval ships designed primarily for naval warfare are termed warships, as opposed to support (auxiliary ships) or shipyard operations. Warship Naval ship classification is a field that has changed over time, and is not an area of wide international agreement, so this article currently uses the system as currently used by the United States Navy. Aircraft carrier ships that serve as mobile seaborne airfields, designed primarily for the purpose of conducting combat operations by Carrier-based aircraft which engage in attacks against airborne, surface, sub-surface and shore targets. Surface combatant large, heavily armed surface ships which are designed primarily to engage enemy forces on the high seas, including various types of battleship, battlecruiser, cruiser, destroyer, frigate, and corvette. Submarine self-propelled submersible types regardless of whether they are employed as combatant, auxiliary, or research and development vehicles which have at least a residual combat capability. Patrol combatant combatants whose mission may extend beyond coastal duties and whose characteristics include adequate endurance and sea keeping providing a capability for operations exceeding 48 hours on the high seas without support. Amphibious warfare ships having organic capability for amphibious assault and which have characteristics enabling long duration operations on the high seas. Combat logistics ships that have the capability to provide underway replenishment to fleet units. Mine warfare ships whose primary function is mine warfare on the high seas. Coastal defense ships whose primary function is coastal patrol and interdiction. Sealift ships that have the capability to provide direct material support to other deployed units operating far from home base.