The Adroit MK2 Arm System, manufactured by HDT Robotics, Inc., Fredericksburg, Va., demonstrates 3-finger dexterity at the 33rd annual Modern Day Marine Military Exposition (MDMME), hosted by Marine Corps Base Quantico, Quantico, Va., September 24, 2013. The MDMME is a 3-day expo that showcases the latest in defense manufacturing, science, technology and warfighting products presented by approximately 400 exhibitors. (Official USMC photograph by Kathy Reesey/Released)