There were three main army groups which took part in the campaign.

Together, the three Russian army groups would have a total of 1,593,800 men.

Army group seemed to have realized that the Americans were far stronger than expected.

The Allied forces along this line were organized into three army groups.

The Army group lacked the strength to go back on the offensive in 1942.

Their hope was to meet up with other Army groups and establish a new stronghold.

Both army groups were later claimed to have participated in war crimes.

The attack was made by three Soviet army groups.

The two German army groups were not positioned to support one another due to the great distances involved.