Army Group East (French: Groupe d'armées de l'Est, G. A. E.) was a grouping of French field armies during World War I, which was created on June 22, 1915 from the French: Groupe provisoire de l'Est (G. P. E.) which had been formed in January 1915. The army group covered the Western Front from the Swiss border to roughly east of Verdun.
from North to South :
From West to East :
From West to East :