Commentary: The Berlin Wall fell and the U.S. learned the wrong lessons. It got us Donald Trump
Thirty years ago, the fall of the Berlin Wall signaled the end of the Cold War. Where there had been two superpowers locked in a dangerous decades-long post-World War II rivalry, only one remained. A global order commonly but misleadingly referred to as bipolar gave way to a new era even more misleadingly referred to as unipolar.
The onset of this unipolar order induced in Washington a mood of sheer giddiness. Leading members of the foreign policy establishment persuaded themselves that a period of unprecedented promise now
