'Brittany' was a US deception undertaking to simulate the movement of regimental combat teams of Major General Paul W. Baade’s 35^th Division, Major General Horace L. McBride’s 80^th Division, Major General Eugene M. Landrum’s 90^th Division and Major General Edward H. Brooks’s 2^nd Armored Division from Normandy to Brittany and thereby, it was hoped, distract the Germans from the full prosecution of their 'Lüttich' offensive at Mortain (7/12 August 1944).