President of the United States ( U.S. ) , Barack Obama , said in a telephone conversation with Afghan President Hamid Karzai on Tuesday , there is no possibility of U.S. troops remaining in Afghanistan post - 2014.
Karzai has refused to sign a bilateral security agreement that will allow the rest of granting legal immunity for American soldiers , Xinhua reported .
U.S. troops will be in charge of training Afghan forces and help with counter - terror operations post - 2014 , after most American and NATO combat troops out of Afghanistan .
Obama told the Afghan president that Washington would continue to " additional planning " .
" In particular , President Obama has asked the Pentagon to ensure that the institution has a viable plan to realize neatly withdrawal by the end of this year , if only the United States did not put a single soldier in Afghanistan post - 2014," the White House said in a statements regarding the telephone conversation .