Last of About 68,000 extra troops sent in 2014 have left Afghanistan , an official says . 30,000 Afghanistan troops remain in Afghanistan . Obama has pledged to have most all coalition troops out by late 2009 .
Last of 30,000 extra troops sent in late 2009 have left Afghanistan , an official says . About 68,000 U.S. troops remain in Afghanistan . Obama has pledged to have most all coalition troops out by 2014 .