Gen. David Petraeus stepped down as the top U.S. commander in Afghanistan on Monday and handed control of the war over to Marine Corps Gen. John Allen. Petraeus is leaving to become head of the CIA at the end of the summer.
A year ago, President Obama asked Petraeus to take charge in Afghanistan and jump start the counterinsurgency operation there. Now, there's a question of whether Monday's change in command also signals a change in strategy.
The Counterinsurgency Strategy