Lessons Learned, Headquarters, 34th Engineer Battalion Open PDF Document Details Document Type Technical Report Publication Date Aug 14, 1969 Accession Number AD0860346 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems Weapons Technologies DTIC Thesaurus Topics Army Artillery Asphalt Civilian Personnel Concrete Construction Directives Engineers Lessons Learned Maintenance Materials Military Personnel Observation Personnel Management Sheet Metal Test And Evaluation Training