Yesterday at the Aspen Ideas Festival, cosponsored by the Aspen Institute and The Atlantic, I spoke on a panel focused on "Smart Power" with a heavy emphasis on the Afghanistan War.

The term "smart power" is just half a decade old, but the concept behind it goes back much further. Grand strategists from Carl von Clausewitz to Lawrence of Arabia advocated a mix of "hard" military power and "soft" ideological sway as the recipe for winning wars.