The nuances of foreign policy do not feature heavily in the ongoing presidential campaign. Every candidate intends to “destroy” the Islamic State; each has concerns about Russian President Vladimir Putin, North Korea, and China; every one of them will defend Israel; and no one wants to talk much about anything else — except, in the case of the Republicans, who rattle their sabers against Iran. In that light, here’s a little trip down memory lane: in October 2012, I considered five critical...
