LESSONS LEARNED, HEADQUARTERS, 809TH ENGINEER BATTALION (CONSTRUCTION) Open PDF Document Details Document Type Technical Report Publication Date May 10, 1968 Accession Number AD0835756 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems DTIC Thesaurus Topics Air Force Aircrafts Army Aircraft Concrete Construction Construction Materials Directives Drills Drinking Water Engineers Landing Fields Lessons Learned Maintenance Observation Test And Evaluation Thailand Training