ISBN-13: 9780837150291 / Angielski / Twarda / 1971 / 343 str.
Initially published on the eve of the German blitzkrieg against France in 1940, this analysis of the German doctrine of defense as it evolved in 1915-1918 is often overlooked because of its misleading title. No understanding of the failure of the Allied offensives on the Western Front in World War I is adequate without reference to this work which explores the problem from the German point of view.