A navy (also known as naval force or maritime force) is a branch of a military organization responsible for naval and amphibious warfare. They employ marines, marine animals (such as dolphins ), naval mounted cavalry (in fiction), watercraft (such as warships and submarines), amphibious vehicles, and other naval and amphibious weapons systems.

As a tag this refers to characters who look like they're part of the navy as well as scenes, settings, and locations that are associated with anything navy related such as shipyards, warship decks, and naval battles.

Other military branches

• army - Ground warfare.
• navy - Naval warfare.
• air_force - Aerial warfare.
• space_force - Space warfare.