Patrol vessels are specialized boats or ships designed for monitoring and protecting specific areas of water, such as coastlines, harbors, and maritime borders. They are often used by naval forces, coast guards, and law enforcement agencies to enforce laws, conduct search and rescue operations, and prevent illegal activities like smuggling and fishing violations. These vessels vary in size and capability, ranging from small boats to larger ships equipped with advanced technology. Many patrol vessels are armed and can perform various missions, including surveillance, reconnaissance, and environmental protection, ensuring safety and security in maritime environments.