Uncovering Ways of War: U.S. Intelligence and Foreign Military Innovation, 1918-1941Intelligence operations face the challenging task of predicting the shape of future wars. This task is hindered by their limited ability to warn of peacetime foreign military innovation. Using formerly classified sources in particular, the reports of military attachs and other diplomat officers Thomas G. Mahnken sheds light on the shadowy world of U. S. intelligence gathering, tracing how America learned of military developments in Japan, Germany, and