Maritime Patrol Aircraft (MPA) are specialized military planes designed for surveillance and reconnaissance over oceans and coastal areas. They are equipped with advanced sensors, radar, and communication systems to detect submarines, ships, and other maritime threats. MPAs play a crucial role in maritime security, anti-piracy operations, and search and rescue missions. These aircraft can also perform anti-submarine warfare by deploying torpedoes and depth charges. Examples of MPAs include the P-8 Poseidon and the Lockheed P-3 Orion. Their ability to cover vast areas makes them essential for monitoring and protecting national waters and interests.