On May 19, 2009, I was taken to the White House to meet President Obama. We'd met once before when he'd visited the Pentagon during his first week in office, but as DJS I'd been in a collection of other civilian and military leaders, so it was unlikely he remembered the man who would soon command his military effort in Afghanistan. I'd been in the Oval Office before with President George W. Bush, but the atmosphere in the West Wing in the final and opening months of administrations differed perceptibly. Although it was four months into Obama's term, there was still a feeling of newness to the people, who moved with an air of excited purpose through the hallways. When the president was available, the door opened and Obama walked to the entrance to greet me into the room. The meeting was short, but cordial. The president offered no specific guidance but locked his eyes with mine and thanked me for accepting the responsibility.