. [4] GSG 9 The  GSG 9 der Bundespolizei  (originally the German abbreviation of  Grenzschutzgruppe 9  or Border Guard Group 9) is the elite counter-terrorism  and  special operations  unit of the  German Federal Police . National Gendarmerie Intervention Group The  National Gendarmerie Intervention Group , commonly abbreviated  GIGN  ( French :  Groupe d'Intervention