Lessons Learned, Headquarters, 577th Engineer Battalion (Construction) Open PDF Document Details Document Type Technical Report Publication Date Oct 31, 1968 Accession Number AD0849002 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems DTIC Thesaurus Topics Abstracts Air Force Air Force Facilities Attack Helicopters Bridges Concrete Construction Construction Equipment Dump Trucks Engineers Lessons Learned Materials Military Personnel Orientation (Direction) Security Small Arms United States