Grand Quartier Général (1914–1919)

The Grand Quartier Général (abbreviated to GQG or Grand QG in spoken French) was the general headquarters of the French Army during the First World War. It served as the wartime equivalent of the Conseil supérieur de la guerre and had extensive powers within an area defined by the French parliament.

Source: Wikipedia — Grand Quartier Général (1914–1919) (CC BY-SA 4.0)