U.S. Marine Sgt. Josh Greathouse, a team leader with Company B, 1st Battalion, 7th Marine Regiment, Special Purpose Marine Air Ground Task Force - Crisis Response - Central Command, scans the area during a perimeter patrol in Al Taqaddum, Iraq, March 21, 2016. SPMAGTF-CR-CC Marines are responsible for the force protection of coalition assets at some Combined Joint Task Force – Operation Inherent Resolve bases within the U.S. Central Command area of responsibility as part of the effort to defeat the Islamic State of Iraq and Levant. (U.S. Marine Corps photo by Sgt. Ricardo Hurtado)