Senior Master Sgt. Erich Sanford discusses C4 and its characteristics with Petty Officer Tivurmei Erengi and Able Seaman Jeremy Magea — Maritime Element members of the Papua New Guinea Defence Force — during an Advanced EOD Conventional Course at Camp Ripley Training Center in Little Falls, Minn. The course provides experience, validation, and confidence in using complex EOD tools and procedures. Submitted photo