A Coast Guard ship is a specialized vessel used by a country's Coast Guard or maritime security agency. These ships are designed and equipped for a range of missions, such as patrolling coastal waters, conducting search and rescue operations, enforcing maritime laws, combating smuggling and piracy, and protecting marine environments. Coast Guard ships vary in size and capabilities depending on the specific tasks they are intended to perform. They are typically equipped with advanced communication systems, radar and sonar equipment, and often carry small boats and helicopters for extended reach and versatility in operations.