7th Armored Division at St Vith

A site named the European Center for Military History has posted an after-action report of the 7th Armored Division (US) during the battle of St Vith, part of the Battle of the Bulge. If, like me, you have no experience of military operations yet are interested in how a modern battle is managed, you'll find little nuggets. For example, what do you think divisional HQ sent first to the operational area? What caused the division HQ to lose telephone communication with corps HQ at the start of the battle? In answer to the first, the advanced billeting parties. To the second, the corps HQ moved. To see a similar report for Combat Command B would also be of interest, giving a slightly different perspective on the whole engagement.