The twelfth in a series of Army Science Conferences was held at the United States Military Academy, 17-20 June 1980. The conference presented a cross section of the many significant scientific and engineering programs carried out by the Department of the Army and provided an opportunity for Department of the Army civilian and military scientists and engineers to present the results of their research and development efforts before a distinguished and critical audience. These Proceedings of the 1980 Army Science Conference are a compilation of all papers presented at the conference and the supplemental papers that were submitted. The Proceedings consist of four volumes, with Volumes I through III unclassified, and Volume IV classified.