Lessons Learned, Headquarters, 84th Engineer Battalion Open PDF Document Details Document Type Technical Report Publication Date May 14, 1969 Accession Number AD0855900 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems Weapons Technologies DTIC Thesaurus Topics Abstracts Civic Action Concrete Construction Construction Materials Engineers Lessons Learned Maintenance Materials Power Distribution Reinforced Concrete Revetments Security Storage Training United States Warfare