The Army may not deploy the first soldiers until at least March . NEW : ` ` Proof is in the pudding '' on Afghan war promises , Hillary Clinton says . ` ` We will try our best '' to be ready to take over security in 2011 , Karzai says . President Obama has said U.S. troops will start leaving Afghanistan in 2011 . Afghan president says Obama timeline is a goal , not ` ` an official announcement ''
NEW : ` ` Proof is in the pudding '' on Afghan war promises , Hillary Clinton says . ` ` We will try our best '' to be ready to take over security in 2011 , Karzai says . President Obama has said U.S. troops will start leaving Afghanistan in 2011 . Afghan president says Obama timeline is a goal , not ` ` an official announcement ''