United States in World War I
Among the many that trained and studied at the Naval Academy in Kiel there were several graduates worth mentioning for this story: Grand Admiral Alfred von Tirpitz (then Captain Tirpitz) graduated in 1865, von Hintze (then without noble title) in 1896. Karl Boy-Ed, eight years von Hintze's junior, joined the class of 1894. After serving in active duty in the Far East, Boy-Ed became German Naval Attaché in Washington in 1912 and worked for then Ambassador von Hintze in his partial responsibility for Mexico. Franz von Rintelen (although he never had a noble title), the son of a well-known Berlin banker, graduated in 1905. Rintelen was to become a notorious German sabotage agent in the United States in World War I. All three worked for Grand Admiral von Tirpitz who became the loudest voice clamoring for unrestricted submarine warfare in the Great War. After Paul Hintze completed his studies at the Naval Academy in 1896, he joined the Naval Command in Berlin.