Lessons Learned, Headquarters, 23d Artillery Group Open PDF Document Details Document Type Technical Report Publication Date Feb 13, 1970 Accession Number AD0509170 Entities Organizations Adjutant General's Corps Tags Communities of Interest Weapons Technologies DTIC Thesaurus Topics Aircrafts Ammunition Army Artillery Civic Action Civil Affairs Fire Support Government Procurement Governments Howitzers Lessons Learned National Security Schools Three Dimensional Two Dimensional United States Warfare