A Patrol Gunboat is a small, armed naval vessel designed for coastal defense and patrolling waterways. These boats are typically equipped with machine guns, cannons, and sometimes missile systems, allowing them to engage in combat and perform surveillance missions. Their shallow draft enables them to operate in shallow waters, making them effective for patrolling rivers and coastal areas. Patrol gunboats are often used by navies and coast guards around the world to enforce maritime laws, conduct search and rescue operations, and deter piracy. They play a crucial role in maintaining security in strategic waterways and protecting national interests at sea.