In this meticulously researched book, Azar Gat overturns recent historiographical trends in the study of British and German armour developments between the two world wars. He dispels some of the serious allegations levelled against leading British armour theorist B.H. Liddell Hart, placing his ideas in their proper relation to those of other leading British theorists and to the practice of British armour formations during that period. Again reversing recent revisionist literature, Professor Gat then shows how decisively the creators of the German Panzer arm were influenced by British theory and practice. Utilizing hitherto untapped German sources, he traces the ideas and dynamics that made possible Germany's Blitzkrieg victories in the opening stage of World War II.