NATIONAL HARBOR, Md. (August 3, 2021) A VOLY 20 series unmanned aerial vehicle, designed to deliver time-critical intel, supplies and materials is displayed at the Sea-Air-Space Exposition. The Sea-Air-Space Exposition is an annual event that brings together key military decision makers, the U.S. defense industrial base and private-sector U.S. companies for an innovative and educational maritime based event. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kyleigh Williams/Released)