The narrator needs to study up on World War II history

At the beginning of the movie, an unseen narrator briefly explains the military strategic situation in December 1944 in the western European theater of operations. His military history is not well-detailed

Narrator: "North is Montgomery's Eighth Army. South is Patton's Third Army"

While technically correct, this information was incomplete. The narrator should have said that, North is Montgomery's 21st Army Group. (British 21st Army Group consisted of the British 8th Army and the Canadian 1st Army). He should have also said that, south is Bradley's 12th Army Group. (American 12th Army Group consisted of Patton's 3rd Army, Hodges' 1st Army, and 9th Army which was briefly loaned out to 21st Army Group)

Narrator: In the Ardennes are several weary American divisions.

The main division that was attacked and destroyed was the new 106th Infantry "Golden Lions" Division. The division was fresh and inexperienced. Now the 44th and the 9th divisions, were in the region, still recuperating after being bled white in the late September-early December 1944 fighting in the horrendous Hurtgen Forest campaign.