Transcription: possible attack of 13 June. Writing for the U.S. Army's Office of the Chief of Military History while a prisoner of war in 1947, General Leo Geir von Schweppenberg asserted that a better strategy could have been adopted on 13 June by concentrating three powerful forces for a single coordinated offensive against the Allied center. This map illustrating this strategy was drafted by an American lieutenant in consultation with General Gare. Gare suggested concentrating the 17th SS Panzer Grenadier Division and the motorized elements of the 3rd Parachute Division on the left, the Panzer Grenadier R ...