January tends to be an introspective month for the Arab world as the region reflects on the anniversaries of the 2011 Arab Spring, debating what has changed and, perhaps more important, what has not. Five years ago, public protests looked like they would not just change the face of many modern Arab states but fundamentally redefine the politics of the region.
And in some places they did, for better or worse. In countries such as Libya, Syria and Yemen, where popular protests attracted thousands, the Arab Spring left in its wake civil wars that continue to this day and could well endure as proxy battles for competing interests for some time to come. But the countries in which the protests actually began -- Egypt and Tunisia -- were practically untouched by the violence that befell their neighbors in the region. Their stability is owed partly to the resilience of...