It's unclear to me if a formation morale triggers a single check or if each unit checks individually.
Section 10.2 talks about a single check per formation but the illustrated example in 10.5.1 seems to say the opposite. In this example the French formation performs a "formation morale check" triggered by an Axis attack that causes 1 step loss more than the number of the units in the formation.
That's fine. But here instead of checking the morale one time only for the entire formation, we have each unit singularly checking its morale. What is the correct procedure?
Checking the morale one time only for the entire formation