Lessons Learned, Headquarters, 39th Engineer Battalion Open PDF Document Details Document Type Technical Report Publication Date Jan 31, 1970 Accession Number AD0510060 Entities Organizations Adjutant General's Corps Tags Communities of Interest Weapons Technologies DTIC Thesaurus Topics Army Artillery Artillery Ammunition Civic Action Concrete Construction Engineers Hydrostatic Pressure Lessons Learned Logistics Logistics Support Reinforced Concrete Schools Security United States Vehicles Warfare