Defense Secretary James Mattis updates the media on the defeat of the Islamic State of Iraq and Syria during a joint press conference at the Pentagon in Washington, D.C., May 19, 2017. Marine Corps Photo by Sgt. Tammy K. Hineline Lt. Gen. Neller conducts a Battlefield Circulation By Adam Linehan on October 20, 2016 T&P on Facebook Looking for a great career? Or know another veteran, service member, or military spouse who is? Get started at Hirepurpose.