Lessons Learned, Headquarters, 23d Artillery Group Open PDF Document Details Document Type Technical Report Publication Date Feb 08, 1967 Accession Number AD0393838 Entities Organizations Adjutant General's Corps Tags Communities of Interest Weapons Technologies DTIC Thesaurus Topics Aircrafts Artillery Artillery Fire Artillery Units Civic Action Employment Engineers Governments Guns Howitzers Lessons Learned Personnel Management Security Surveillance Training United States Warfare