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The Zimmermann telegram was a top-secret message to the president of Mexico, inviting him to join Germany and Japan in an invasion of the United States. How Britain managed to inform the American government without revealing that the German codes had been broken makes for an incredible story of espionage and intrigue as only Barbara W. Tuchman could tell it. The Proud Tower, The Guns of August, and The Zimmermann Telegram comprise Barbara W. Tuchman’s classic histories of the First World War era.","forthcoming":false,"isbn13":"9780345324252","publication_date":"19850312","publisher":"Random House Publishing Group","slug":"the-zimmermann-telegram","subtitle":"America Enters the War, 1917-1918; Barbara W. 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