This book is subtitled 1915 – Germany’s Secret War by Howard Blum. It is a fascinating and very readable account of a corner of American history not very well explored lately; what happened in the early years of WWI, when the assassination of an Austrian arch-duke set Western Europe on fire and America remained tenuously neutral. Very soon it became apparent to those in highest authority in Germany that the war would not be a walk in the park; that it would be a long and bloody war of attrition. In those circumstances, the United States could not be easily dismissed even if it was considered such a backwater by the German general staff that it was lumped together with Mexico, to the disgust of Captain Franz von Papen. He was then assigned as military attaché to the German embassy in New York in 1913 but in 1915 he was tasked with recruiting spies and saboteurs to wreak havoc.
Technically, the United States was a neutral, although quite a fair number of the wealthy social elite as well as the political leadership of the time were inclined to favor the British, and maintained strong cultural ties with England. Business and financial ties also favored the Allies and considerable agricultural and industrial bounty flowed freely to England, France and Russia, to the indignation of the German government. This was fiendishly one-sided neutrality, to their way of thinking. Von Papen and his fellows dove into a covert war with considerable relish, although there was the danger (a real one, as it turned out) that German efforts to hamper aid to the Allies might backfire, and alienate the U.S. out of neutrality and into open war against Germany.