Master EOD technician, U.S. Navy Chief Petty Officer Justin Berlien (left), Explosive Ordnance Disposal Mobile Unit 11, Combined Joint Task Force-Horn of Africa, coordinates radio frequencies with Namibia Defense Force EOD Captain Ferdinard Fillemon during demolition initiation procedures, April 27. Radios were used as the primary means of communication to ensure range safety during a joint training seminar in which U.S. Navy EOD technicians shared their skills with their Namibian counterparts.