ARLINGTON, VA - AUGUST 04: US President Barack Obama speaks to media after a meeting with US Secretary of Defense Ashton Carter and members of the Joint Chiefs of Staff, at the Pentagon August 4, 2016 in Arlington, Virginia. President Obama chaired a National Security Council Meeting on the counter-ISIL campaign and received an update from his national security team on the efforts to degrade and destroy the terrorist group. (Photo by Mark Wilson/Getty Images)
