Book excerpt: During World War II, the two pre-eminent mechanized infantry forces of the conflict, the German Panzergrenadier arm and the US Army's armoured infantrymen, clashed in France and Belgium after the Normandy landings. These engagements went on to profoundly influence the use of mechanized infantry in the post-war world. Drawing upon a variety of sources, this book focuses on three key encounters between July and December 1944 including during Operation Cobra and the Battle of the Bulge, and examines the origins, equipment, doctrine and combat record of both forces. With specially commissioned full-colour artwork and maps, this study sheds light on the evolving nature of mechanized warfare at the height of World War II.