"Naval vessels" refers to ships or boats that belong to a country's navy or naval forces. They are specifically designed and used for military purposes, such as warfare, defense, or patrolling the seas. Full definition
It has been proposed for naval vessels where the diesels or turbines would generate electricity to power electric motors that turn the ship's propellers. (extremetech.com)
These vessels, however, were commissioned by the nation of origin as naval vessels, and subject to the codes such forces abide by. (politics.stackexchange.com)
It was founded to serve as an infantry unit aboard naval vessels, and its primary duty was to provide offensive and defensive combat during boarding actions and to protect the ship's officers from mutiny. (bookbrowse.com)