Army Group G was initially deployed as an Armeegruppe-type formation on 28 April 1944, but was later upgraded to Heeresgruppe-type on 12 September 1944.[2]:13
Army Group G fought in the Vosges Mountains during November 1944 and retreated through Lorraine and north Alsace during December.[8] In late November 1944, Army Group G temporarily lost responsibility for the German troops in the Colmar Pocket and on the Rhine River south of the Bienwald to the short-lived Army Group Oberrhein. In January 1945 the Army Group attacked in Operation Nordwind ("North Wind"), the last big German counter-attack on the Western Front.[8] With the failure of Nordwind and the ejection of the Germans from the Colmar Pocket, Army Group Oberrhein was dissolved and Army Group G reassumed responsibility for the defense of southwestern Germany.
Unable to halt the offensive by Allied troops that cleared the Rhineland-Palatinate and subsequently assaulted over the Rhine River, Army Group G's troops nevertheless fought to defend the cities of Heilbronn, Crailsheim, Nuremberg, and Munich during April 1945.
↑Tessin, Georg (1977). Die Waffengattungen - Gesamtübersicht. Verbände und Truppen der deutschen Wehrmacht und Waffen-SS im Zweiten Weltkrieg 1939–1945 (in German). Vol.1. Osnabrück: Biblio. ISBN3764810971.
Tessin, Georg (1980). Die Landstreitkräfte: Namensverbände / Die Luftstreitkräfte (Fliegende Verbände) / Flakeinsatz im Reich 1943–1945[Ground forces: Named units and formations / Air forces (Flying units and formations) / Anti–aircraft service in the Reich 1943–1945] (in German). Vol.14. Osnabrück: Biblio. ISBN3-7648-1111-0.{{cite book}}: |work= ignored (help)
The German View website of the 100th (U.S.) Infantry Division Association