NEW : When you harm our citizens , when you threaten the United States , when you threaten our allies , it does n't frighten us . French President says France has carried out its first airstrikes against ISIS . President Barack Obama says more than 40 countries have offered assistance . The U.S. military has approved a plan to fight ISIS in Syria , he said . ISIS captured 16 villages in northern Syria in the past month , opposition leader says .
NEW : French President says France has carried out its first airstrikes against ISIS . President Barack Obama says more than 40 countries have offered assistance . The U.S. military has approved a plan to fight ISIS in Syria , he said . ISIS captured 16 villages in northern Syria in the past month , opposition leader says .