After Ghani 's election last year , Afghanistan and the United States signed a security agreement that allowed U.S. troops to stay in Afghanistan beyond the previous December 2014 deadline to withdraw . President Carter : Obama considering ` ` possible changes '' to U.S. troop drawdown timeline . He will visit U.S. troops and Afghan officials during his two - week stay in Afghanistan .
President Carter : Obama considering ` ` possible changes '' to U.S. troop drawdown timeline . He will visit U.S. troops and Afghan officials during his two - week stay in Afghanistan .