Wikipedia
An army group is a military organization consisting of several field armies, which is self-sufficient for indefinite periods. It is usually responsible for a particular geographic area. An army group is the largest field organization handled by a single commander—usually a full general or field marshal—and it generally includes between 400,000 and 1,000,000 soldiers.
In the Polish Armed Forces and former Soviet Red Army an army group was known as a Front. The equivalent of an army group in the Imperial Japanese Army was a "general army" .
Army groups may be multi-national formations. For example, during World War II, the Southern Group of Armies (also known as the U.S. 6th Army Group) comprised the U.S. Seventh Army and the French First Army; the 21st Army Group comprised the British Second Army, the Canadian First Army and the US Ninth Army.
In U.S. Army usage, the number of an army group is expressed in Arabic numerals (e.g., "12th Army Group"), while the number of a field army is spelled out (e.g., "Third Army").
Usage examples of "army group".
Heavy losses were inflicted on the advancing Syrian Army Group, but that close to the GIR, with their massive numbers of aircraft, air superiority was not achieved and we were left with no choice but to withdraw.
Besides, General Peng and his army group are advancing even as we speak.
But that doesn't prevent him from writing to his cousin Tulla, who, when she is not cut off in Danzig-Langfuhr with elements of the Vistula Army Group, goes on working as a streetcar conductress.
He was - arrested by the NKVD twelve miles from Berlin, when he was part of Zhukov's army group.
An entire Circle Army Group and their air attachment were wiped out by the United Americans.
It was completely exhilarating, with the rain beating in her face, and for a while she was back in another, safer place, the world of her childhood that had ended at four forty-five on the morning of 1 September 1939 when General Gerd von Rundsted's Army Group South had invaded Poland.
It was completely exhilarating, with the rain beating in her face, and for a while she was back in another, safer place, the world of her childhood that had ended at four forty-five on the morning of 1 September 1939 when General Gerd von Rundsteds Army Group South had invaded Poland.
William Warren Crossfield had commanded an Army Group north from Southern France and over the Rhine.
He was now in over-all command, under the Grand Duke, of the Northwest Army Group on the front against Germany.