APPENDIX "3" PROPOSED TALK TO U.K, ~ CANADIAN OBSERVERS To be Given by Dr. William EF, Ogle Acting Deputy Commander for Scientific Matters Joint Task Force-Seven Since our last Pacific test operation two years ago, and the last U.S. continental test a year ago, we have made important design advances in our laboratories. It is now necessary to test these new concepts or to test new devices which have entered or will enter stockpile, To accomplish these purposes, Operation REDWING was scheduled over a year ago and is now being conducted, As has been mentioned by others, the probability of having favorable weather conditions for firing a high~yleld shot, that is in the megaton range, on any given day in the Pacific Prov-~ ing Ground is small, perhaps one in ten, Thus, it seemed de- Sirable to plan to fire low-yield devices while waiting on the weather for high-yield shots, Therefore, last summer the plans for REDWING were changed to include the firing of several lowyield devices, As you have probably observed, at Eniwetok Atoll, Eniwetok | Island and Parry Island are permanent installations, representing the investment of many millions of dollars and containing, at shot time, several thousand people, Those islands serve as a base for operations and cannot be jeopardized without having serious consequences. The northern islands of Eniwetok, on the other hand, have been treated as shot islands and may be altered as necessary for the operation, We also have the concept that the whole of Bikini Atoll is treated as a shot island. -~-6- onekae If we Appendix “B"

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