The Hardened Alternative Trailer System (HATS) schematic drawing of a section of flashing with ballistic strip, slotted holes and overlap plate; the latest inventions are a continuation of the HATS. The U.S. Army Engineer Research and Development Center’s Geotechnical and Structure Laboratory (GSL) Research Civil Engineer Justin Roberts improved his previously patented Modular Anti-Ballistic, Blast and Forced Entry Resistant Shelter with inventions of strengthening and weather-resisting components. (U.S. Army Corps of Engineers photo)