Good treatment in the Osprey monograph format,
This review is from: Metz 1944 (Campaign) (Paperback)
METZ is where the US Third Army realized that it was not going to be over by Christmas, 1944. This is an excellent telling on the story with the constraints (limited size, no footnotes) of an Osprey history while making full use of the series' opportunities to present division-level order of battle, excellent operational and tactical maps, and illustrations recreating specific tactical situations. A great way to cram a lot into a relatively few pages. It also demonstrates a greater awareness of the enemy than that reflected in the US Army's "Green Book" official history treatment of Metz.
While the author quite rightly points out that Third Army performed well in comparison with the other Allied armies in the frustrating autumn of 1944, it does implicitly demonstrate that even with the Patton cachet, the US armored thrusts were an order of magnitude less in size and depth than those the Red Army was capable of in the same period. Could Metz and its bridges have been bypassed like the Channel forts? Probably not. Were the fortifications important? At a tactical level, yes, even if the operational level limitations of concrete defenses had been demonstrated at the Atlantic Wall in 1944 and the Maginot Line in 1944.
Could Osprey please do Bologna 1944-45 from the same author? It would give a good comparison with how things were done in Italy at about the same time.