Attacks on parachutists, in term of the law of war, is when pilots, aircrews, and/or passengers are attacked while descending by parachutes from disabled aircraft during a war. This practice is considered by most militaries around the world to be inhumane, barbaric, and unchivalrous, that it is unnecessary killing (i.e., they would eventually become prisoners of war if parachuted over enemy territory), that it is contrary to fair play, and that military pilots have to be held to a higher standard. Attacking people parachuting from an aircraft in distress is a war crime under Protocol I in addition to the 1949 Geneva Conventions. However, it is not prohibited under this Protocol to open fire on airborne troops who are descending by parachutes, even if their aircraft is in distress.