Air Force Staff Sgt. Matthew Duff, center, Explosive Ordnance Disposal craftsman, explains how Air Force Staff Sgt. Cole Grandginette-Carroll, left center, and Air Force Senior Airman Cody Stevenson, left, EOD journeyman, did on the scenario during the Improvised Explosive Device Rodeo on Spangdahlem Air Base, Germany, Feb. 15, 2018. Air Force photo by Staff Sgt. Jonathan Snyder