Executive Order (from the National Security Council)
National Security Decision Memorandum 35 (NSDM-35)
Signed: November 25, 1969
Through this memorandum, the Chemical and Biological Warfare Program were split into two entities, the Chemical Warfare Program and the Biological Research Program. The objective of the Chemical Warfare Program was to deter other nation’s from using their chemical weapons. Regarding the Biological Research Program, the U.S. renounced the use of biological weapons, lethal and otherwise, and focused its reseach towards defensive purposes.
