Royal Australian Navy Chief Petty Officer Luke Graham, 20th Explosive Ordnance Disposal (EOD) Squadron, 1st EOD Troop, demonstrates how to attach a detonation cord to blocks of Plastic Explosives No.4 (PE4) before a controlled detonation of explosives found at Tarin Kowt in Uruzgan province, Afghanistan, April 29, 2013. Afghan National Security Forces trained alongside the technicians to perfect their skills to successfully take the lead in disposing of explosives. (U.S. Army photo by Sgt. Jessi Ann McCormick/Released)