Fifteen of the Navy SEALs that were killed were members of the Naval Special Warfare Development Group (DEVGRU),[1][14][3] while the other two Navy SEALs killed in the helicopter shootdown were from an unidentified West Coast-based SEAL unit. The five other Navy casualties were NSW (Naval Special Warfare) support personnel; in addition to these, three AFSOC operators, one Combat Controller and two Pararescuemen, all members of the 24th Special Tactics Squadron, died in the crash. Their deaths are the greatest single loss of life ever suffered by the U.S. Special Operations community in the 24-year history of the U.S. Special Operations Command.[5][14][4][29]