Lessons Learned, Headquarters, 1st Battalion, 40th Artillery Open PDF Document Details Document Type Technical Report Publication Date Aug 10, 1968 Accession Number AD0394061 Entities Organizations Adjutant General's Corps Tags Communities of Interest Air Platforms Biomedical Human Systems Weapons Technologies DTIC Thesaurus Topics Army Artillery Closed Loop Systems Generators Government Procurement Governments Howitzers Law Lessons Learned Maintenance National Security Observers Radio Equipment Riot Control Security Two Dimensional United States