It has long been said that there are wars of necessity and wars of choice. But enemies always adapt, especially in our world of terrorists, failing states and delinquent regimes. Every war is a war of choice.
Change in Iran is in the air, and it could be dramatic--but this is speculative and both the timetable and the actual policy implications are impossible to specify.
With great power comes great responsibility. But Washington is adrift and our country in search of a strategy. Foreign-policy heavyweight Les Gelb wittily channels a master to update the classic realpolitik definition of power.
