LESSONS LEARNED, HEADQUARTERS, 20TH ENGINEER BATTALION (CBT) Open PDF Document Details Document Type Technical Report Publication Date Aug 06, 1968 Accession Number AD0837552 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems Weapons Technologies DTIC Thesaurus Topics Aircrafts Army Artillery Artillery Fire Concrete Construction Construction Materials Detectors Distributors Engineers Landing Fields Materials Military Personnel Soil Stabilization Special Forces Surface Finishing Warfare