In September 1939, Nazi Germany initiated the second world war by invading Poland. William Russ has compiled a highly detailed study of the German invasion of Poland in September 1939, examining, the actions of every group on a daily basis. This book explores the campaign down to the regimental level from the German perspective, listing every action as appropriate. The appendices provide a complete order of battle for the Germans and the Polish forces as well as their positions. There are sixty-nine maps of the campaign as well as information on armament and equipment.