What is "wachbataillon"

The Wachbataillon (full name: Wachbataillon beim Bundesministerium der Verteidigung (WachBtl BMVg) (Guard battalion at the Ministry of Defence)) is the German Bundeswehr's elite drill unit. The Wachbataillon is the largest battalion of the German forces with about 1,800 soldiers, split in two garrisons in Berlin and Siegburg. It consists of nine companies (see list below) and belongs to the Streitkräftebasis (Joint Service Support Command) of the Bundeswehr. The soldiers of the Wachbataillon often refer to themselves as Protter or Protokollsoldaten, meaning protocol soldiers.