The United States must also do a better job of explaining to the American public why improving ties with adversaries can be useful while not exaggerating what the benefits of doing so are. Washington needs to explain how improving ties with one U.S. adversary which has grown wary of another can be beneficial to the United States while not doing so can mean that alliances among adversaries might persist despite serious differences between them. Above all, Washington must convey to the American public that it pursues rapprochements with adversaries not out of altruism or naïve expectations (as the opponents of such rapprochements loudly claim), but in pursuit of realpolitik interests.

Finally, the success of America’s adversaries in taking advantage of differences between Washington and several of its traditional allies shows that American diplomacy needs to focus not just on taking advantage of differences between America’s long-established adversaries, but also on blunting growing rapprochements between its adversaries and traditional U.S. allies. Indeed, it is because America’s adversaries have been as successful as they have in exploiting differences between the United States and some of its allies that it is now especially important for the United States to increase its own efforts at exploiting differences both between its adversaries and between its adversaries and Washington’s traditional allies. The U.S. inability to do this successfully—whether as a result of allied obstruction, domestic political opposition, or any other reason—will only serve to enhance its adversaries’ ability to do so.

Mark N. Katz is a professor of government and politics at the George Mason University Schar School of Policy and Government, and a nonresident senior fellow at the Atlantic Council. He has contributed numerous articles to The National Interest.

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