U.S. Marine Corps 1st Lt. Christian Castilla and Gunnery Sgt. Ryan Kirkham, the combined anti-armor team platoon commander and platoon sergeant attached to Task Force Al Asad from 1st Battalion, 7th Marine Regiment, Special Purpose Marine Air-Ground Task Force-Crisis Response-Central Command, discuss infantry tactics with an Iraqi officer of the 7th Iraqi Infantry Division during training at Al Asad Air Base, Iraq, July 7, 2017. These Marines are part of the Task Force’s coalition security force team in charge of providing security to the base and personnel onboard. Task Force Al Asad’s mission is to advise and assist and build partner capacity with the Iraqi Security Forces in Al Anbar province in support of Combined Joint Task Force-Operation Inherent Resolve, the global coalition to defeat ISIS in Iraq and Syria. (U.S. Marine Corps photo by 1st Lt. Dave Williams)