Attacks on parachutists, as defined by the law of war, occur when pilots, aircrew, and passengers are attacked while descending by parachute from disabled aircraft during wartime. Such parachutists are considered hors de combat and it is made a war crime to attack them in an interstate armed conflict under Additional Protocol I to the 1949 Geneva Conventions. However, firing on airborne forces who are descending by parachute (i.e. paratroopers) is not prohibited.[1]