Mr. Feith is highly regarded for his command of diplomatic history and international law.

CENTERFORSECURITYPOLICY: Center For Security Policy

Not entirely, at least according to one (contested) version of recent diplomatic history.

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"There was a feeling in Canada that it had to be done, " said Alan Henrikson, a professor of diplomatic history at Tufts University.

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Both in his prepared remarks and in answering questions, Mr. Podhoretz addressed the issue of Iran and its quest for nuclear weapons and, specifically, recent American diplomatic history that, he believes, will make a confrontation inevitable.

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But Mr Kagan's Whiggery helps to bring long-dead diplomatic history to life: who else but a professional historian would want to read about the Monroe doctrine except for the light that it throws on America's current dilemma?

ECONOMIST: American foreign policy

He has a PhD from Yale in diplomatic and military history.

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The 179-room Hotel Kamp, a stylish outpost located along the city's famous Esplanadi Boulevard, has a long history of attracting both diplomatic and celebrity renown.

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While there is time and space, we believe, for the diplomatic course to be pursued in conjunction with increasingly stringent sanctions that are already the most stringent ever in history, we know, too, that there is not unlimited time.

WHITEHOUSE: Press Gaggle aboard the Press Bus en route Davenport, IA