United States Airforce (USAF) pararescue is the search and rescue force that does the roughest, toughest, most dangerous, rescue missions. Sometimes they have to jump out of airplanes when people are shooting at them so that they can save someone on the ground. They do personel recovery, combat rescue, and are trained to rescue in any condidion. They are called PJs (Parajumpers). The video below tells you a little bit more about what they do. This is their mission.