Army Spc. Ethan Estabrooks, a helicopter crew chief and mechanic with the Iowa Army National Guard’s Charlie Company, 2nd Battalion, 147th Aviation Regiment, reads from a technical manual during a SINCGARS radio communications event at the Iowa Best Warrior Competition at Camp Dodge in Johnston, Iowa, March 19, 2016. Each soldier was required to load a channel and communicate properly on the radio to pass the event. Iowa Army National Guard photo by Sgt. Andrew Shipley