Lessons Learned, Headquarters, 70th Engineer Battalion Open PDF Document Details Document Type Technical Report Publication Date Jul 31, 1969 Accession Number AD0861634 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems Weapons Technologies DTIC Thesaurus Topics Aircrafts Artillery Civic Action Concrete Construction Directives Dump Trucks Lessons Learned Materials Oil Coolers Storage Three Dimensional Transportation United States Vehicles Warfare Warning Systems