Lessons Learned, Headquarters, 27th Engineer Battalion Open PDF Document Details Document Type Technical Report Publication Date Jul 30, 1971 Accession Number AD0886517 Entities Organizations Adjutant General's Corps Tags Communities of Interest Air Platforms Weapons Technologies DTIC Thesaurus Topics Abstracts Aircrafts Army Clearances Combat Support Construction Counterintelligence Engineers Landing Fields Lessons Learned Materials Military Operations Security Task Forces Test And Evaluation United States Warfare