Secret Jordan base was site of covert aid to insurgents.. .the fighters trained in Jordan became members of the ISIS after their training. Syrian rebels who would later join the Islamic State of Iraq and the Levant, or ISIS, were trained in 2012 by U.S. instructors working at a secret base in Jordan, according to informed Jordanian officials. The officials said dozens of future ISIS members were trained at the time as part of covert aid to the insurgents targeting the regime of Syrian President Bashar al-Assad in Syria. The officials said the training was not meant to be used...