Lessons Learned, Headquarters, 84th Engineer Battalion (Construction) Open PDF Document Details Document Type Technical Report Publication Date Jul 31, 1970 Accession Number AD0879564 Entities Organizations Adjutant General's Corps Tags Communities of Interest Weapons Technologies DTIC Thesaurus Topics Abstracts Army Artillery Attrition Concrete Construction Construction Materials Drug Abuse Engineers Fabrication Lessons Learned Materials Quality Control Reinforced Concrete Retaining Walls Training United States