[3] With the Allied invasion imminent, LXXXIV Army Corps reported in late May 1944 that only half of the winter programme had been fulfilled and that many coastal batteries were still left to be installed.

[7] Shortly after midnight on 6 June 1944, Allied airborne landings began at the Orne river and on the Cotentin peninsula.

The LXXXIV Army Corps was subsequently put to high alert to react to the ongoing Allied invasion.

[8] Because of its position within the German Atlantic Wall, the LXXXIV Army Corps was the first formation to respond to the Normandy landings by the western Allies.

Only the 352nd Division did not carry the designation bodenständig,[4] and was the only formidable fighting force under control of LXXXIV Army Corps.

The situation was further complicated by the fact that the 319th Infantry Division was guarding the Channel Islands and would be unavailable for the fighting in Normandy.

[9] The 21st Panzer Division, although not directly subordinate to the LXXXIV Army Corps, was stationed nearby at Saint-Pierre-sur-Dives.

[3] By 24 July, the Allied landing ground had expanded to include Caen, Balleroy, Saint-Lô and La Haye-du-Puits.

The LXXXIV, now supported by and supervising the II Parachute Corps, stood as part of the 7th Army on the left German flank north of Coutances.

[12] The LXXXIV Army Corps was hindered in its operational capabilities by the Allied bombing campaign against the French railways.

[3] Elfeldt later gave testimony about his time as commander of the LXXXIV Army Corps to British historian B. H. Liddell Hart.

[15][16] Günther von Kluge, commander of Army Group D, blamed Choltitz for the German defeat in Normandy and thus saw him removed in favor of Elfeldt.