When I arrived at the Pentagon in 2009, the Obama administration was just getting its footing as caretakers of the War on Terror. Our focus then was truly global dominion. That meant, yes, killing and capturing whatever the intelligence process coughed up as bad guys no matter who they were or where they were. But also, technologically, our fixation was on “prompt global strike”—the idea that the US should be able to reliably put warheads on...










