Search and rescue
Search and rescue is when people look for a person who is lost or in danger. It is usually done by ships, helicopters, or land vehicles that are specially equipped. Most of these missions take place at sea or in the mountains. Search and rescue missions are performed by civilian and military rescuers, such as police or firefighters.
Combat search and rescue is a military variant performed by special forces like the United States Navy SEALs on the battlefield.