Naval vessels are ships or boats specifically designed for naval warfare and operations. They can vary in size and function, including aircraft carriers, destroyers, submarines, and frigates. These vessels are equipped with advanced technology and weaponry to protect a nation's interests at sea and support military missions. In addition to combat roles, naval vessels also perform humanitarian missions, such as disaster relief and search-and-rescue operations. They are often part of a larger fleet, which may include support ships and supply vessels, working together to ensure maritime security and operational effectiveness in various environments.