The phrase "army groups" is correct and usable in written English.
It can be used to refer to large military formations or units that are organized for specific operations or campaigns.
Example: "During the war, several army groups were deployed to different fronts to maximize their strategic advantage."
Alternatives: "military divisions" or "combat units".
By December 1944, German forces defending against continued Western Allied offensives were organized into four separate army groups; three (Army Groups H, B. and G) fell under the command of Field Marshal von Rundstedt, while the fourth (Army Group Öberrhein) fell under the command of Heinrich Himmler.
Composed of the German 4th Panzer and 6th Armies, as well as the Third and Fourth Romanian Armies, Manstein's new army group was situated between German Army Groups A and B. Instead of attempting an immediate breakout, German high command decided that the trapped forces would remain in Stalingrad in a bid to hold out.
When the Commander-in-Chief of the Army no longer existed, the commanding generals of army groups then applied to the military adjutant's office, or they applied to the Chief of the General Staff of the Army for permission to make a report, which the commanding generals could not do themselves.
He also unsuccessfully commanded two army groups.
Two of those arrested came from elite army groups.
I could mention the names of all the commanding generals of army groups who ever held a post.
Overall, it was the incongruous plans of the pro-army groups that seemed to irk the majority of Egyptians.
Ironically, it was the police who'd killed the martyrs being remembered, but I'm guessing the pro-army groups just chose to forget that minor detail.
Until Tuesday, the pro-Brotherhood groups had a monopoly on anti-army chants and the pro-army groups dominated the anti-Brotherhood chants.
Thankfully, the scenes of November 19 , 2011weren't repeated, but small scuffles did break out near the Egyptian Museum just off Tahrir Square as pro-army groups exchanged verbal and then physical threats against their opponents.
Thankfully, the scenes of the 19th of November, 2011 weren't repeated, but small scuffles did break out near the Egyptian Museum just off Tahrir Square as pro-army groups exchanged verbal – and then physical – blows with their opponents.
