This is both a history of the service attaché, beginning with the Napoleonic era, and a discussion of his changing role, past and present. Professor Vagts shows the military adviser temporarily joined to the diplomatic corps as a person often divided in his loyalties to diplomatic officials and to military leaders. Affected by increasing bureaucratic specialization, he sometimes became a "twilight" figure engaged in political activity and even espionage. Professor Vagts' numerous works on the history of militarism and the military, in both German and English, and his research in the chancelleries of Europe have given him perspective for this book.

Originally published in 1967.

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