There 's no shortage of battle-hardened militants in Afghanistan , writes Nick Paton-Walsh . Concerns are growing about how ISIS may expand into the country . The Taliban has been fighting for more than a decade to topple President Hamid Karzai and establish an Islamic state across Afghanistan.
There 's no shortage of battle-hardened militants in Afghanistan , writes Nick Paton-Walsh . Concerns are growing about how ISIS may expand into the country . A senior U.S. official fears disaffected Taliban might be attracted to the group .