Editor’s note: This will be Nikolas Gvosdev’s final “Realist Prism” column at World Politics Review. We’d like to take this opportunity to thank Nick for the sharply reasoned and rigorous analysis he has offered WPR readers each week for the past six years, as well as for the support he has shown for WPR over that time. We wish him continued success.

In November 2008, in my first article for World Politics Review, I asked whether the newly elected U.S. President Barack Obama would govern more as a Wilsonian idealist or as a progressive realist when it came to the conduct of U.S. foreign policy. Six and a half years later, I realize that this was the wrong question to pose. ...