U.S. President Obama meets with Afghan President Karzai at the Presidential Palace in Kabul
U.S. President Barack Obama meets with Afghan President Hamid Karzai at the Presidential Palace in Kabul, March 28, 2010. Obama arrived unannounced in Afghanistan on Sunday, his first visit to the war zone that could define his presidency since his election as U.S. commander-in-chief. Air Force One landed in darkness at Bagram airfield north of the Afghan capital, and Obama was whisked by helicopter to Hamid Karzai's palace in Kabul, where he was greeted by the Afghan president and a band playing the U.S. national anthem. REUTERS/Jim Young (AFGHANISTAN - Tags: POLITICS)
A look at the memorable moments of President Barack Obama's time in office.