Lessons Learned, Headquarters, 5th Battalion, 27th Artillery Open PDF Document Details Document Type Technical Report Publication Date Apr 30, 1970 Accession Number AD0510880 Entities Organizations Adjutant General's Corps Tags Communities of Interest Weapons Technologies DTIC Thesaurus Topics Abstracts Acquisition Artillery Artillery Fire Artillery Units Combat Operations Command And Control Detection Government Procurement Governments Lessons Learned National Security Observation Observers Target Acquisition Vietnam Warfare