The U.S. troop surge in Afghanistan, which began in 2009, ended this week. As the Times aptly notes, the conclusion of one of Obama’s biggest military endeavors has come and gone with little fanfare. The president is doubtless happy about this, as the mission has been far from an unqualified success: The milestone, which still leaves 68,000 American troops in Afghanistan, went nearly unremarked here, with no statement from President Hamid Karzai or the United States military commander, Gen. John R. Allen, or even from the American ambassador. It was announced on the other side of the planet, by the...