- Grand strategy : The application of all national means of affecting the actions of other nations and non-national actors; specifically includes but is not restricted to military means
- Military strategy : The highest-level national concept of the use of pure military power, inlcluding setting the composition of the military and its deployment; high-level regional objectives in war; military research and setting military production priorities
- Ship : Vessel larger than a boat for transporting people, goods, or defence by sea, and capable of crossing open waters.
- Naval warfare : The military history of the organized navies of the world from 300 BCE to the present.
- Freedom of navigation : Add brief definition or description
- Power projection : The capability to deploy military forces, even if limited to air and special operations, on short notice over intercontinental ranges
- Sea control : "The employment of naval forces, supported by land and air forces as appropriate, in order to achieve military objectives in vital sea areas. Such operations include destruction of enemy naval forces, suppression of enemy sea commerce, protection of vital sea lanes, and establishment of local military superiority in areas of naval operations." (U.S. Joint Chiefs of Staff)
- Amphibious warfare : The set of techniques, equipment, specialized units, and methods of training needed to move troops across water, and deliver them to land, ready for immediate combat.
- Anti-air warfare : In the context of naval warfare, the mission of defending against aircraft and missiles, from platforms under naval command and control, possibly in coordination with other services and possibly defending land as well as sea areas.
- Anti-surface warfare : (ASuW) In the context of naval warfare, the mission of attacking surface vessels, from small boats to supertankers and aircraft carriers, from platforms under naval command and control
- Anti-submarine warfare : (ASW) In the context of naval warfare, the mission of attacking underwater vessels, from platforms under naval command and control.
- Ballistic missile defense : A combination of sensors, command and control systems, and missile/warhead kill mechanisms that protect a region, or, in the case of the U.S., theaters of operations as well as the nation proper.
- Close air support : Weapons delivered, by aircraft, in close proximity to friendly forces that are in contact with enemy forces; direct support of ground combat requiring extreme care to avoid fratricide
- Combat search and rescue : The location and rescue of military and civilian personnel in hostile areas, such that a military operation is necessary to retrieve them
- Land attack : A range of technologies and techniques used to attack targets on land from the sea; the targets are usually assumed to be well inland, and the weapons to be non-nuclear
- Mine warfare : An area of military technology and doctrine, which deals with the development, use of, defense against, and removal of land mines, improvised explosive devices, and sea mines. These devices are characterized by being distributed prior to the presence of an adversary; the mines trigger either by sensing the enemy, or by command from friendly forces.
- Naval gunfire support : naval gun, unguided rocket, and guided missile fire from ships, in direct support of ground forces; does not include close air support even if the aircraft fly from ships
"Modern" is assumed to be from the beginning of the 20th century; some types, such as battleships, are no longer part of current navies and unlikely to return
- Aircraft carrier : A warship designed to launch and recover combat aircraft and aircraft that support military operations
- Battleship : A heavily-armored, warship optimized for fighting other warships using large-caliber guns; certain armor requirements differentiated from cruisers; obsolete by end of World War II.
- Cruiser : While definitions vary with time and doctrine, a large warship capable of acting independently, as a flagship, or a major escort; capabilities include anti-air warfare, anti-surface warfare, anti-submarine warfare, land attack, and possibly ballistic missile defense
- Destroyer : While the definition has evolved constantly, it is a multipurpose surface warship, generally less powerful than a cruiser, with capabilities against ship, aircraft, submarine, land, and sometimes ballistic missile targets
- Fast attack craft : Small naval craft, used in coastal waters, which rely on speed and maneuverability to survive to deliver heavy weapons (e.g., torpedoes, anti-shipping missiles) against warships, or to make gunfire attacks on merchant ships and landing craft
- Ocean escort : A warship with weapons and sensors to defend itself and ships near it, sturdy enough to operate in ocean conditions, but with only enough speed to escort merchant and military support ships, and usually not built to full warship standards of battle damage survivability
- Littoral Combat Ship : Add brief definition or description
Some types listed may overlap; a given vessel type might have both a helicopter flight deck and a (dock) well deck
- Amphibious Assault Ship : Add brief definition or description
- Landing Platform Helicopter : Add brief definition or description
- Landing Platform Dock : Add brief definition or description
- Landing Ship Dock : Add brief definition or description
- Landing craft : Add brief definition or description
- Prepositioning ship : Add brief definition or description
- Command ship : Add brief definition or description
- Intelligence collection ship : Add brief definition or description
- Oceanographic ship (naval) : Add brief definition or description
- Oiler : Add brief definition or description
- Replenishment ship : Add brief definition or description
- Tender : Add brief definition or description
- Ship of the line : Add brief definition or description
- Frigate (sail) : Add brief definition or description
- Sloop-of-war : Add brief definition or description
- Royal Navy : Add brief definition or description
- United States Navy : Add brief definition or description
- Russian Federation Navy : Add brief definition or description
- French Navy : Add brief definition or description
- Indian Navy : Add brief definition or description
- Admiral : Add brief definition or description
- Captain (naval) : Add brief definition or description
- Petty officer : Add brief definition or description