ir ~ i= HEADQUARTERS, Joint Task Force 132 1 7 | ic -_ APO 187 (HOW), c/o Postmaster San Francisco, California ANNEX B TO CJTF 132 OPERATION ORDER NO, 5-52 CONCEPT AND NARRATIVE OF OPERATIONS i. The period covered by this narrative extends beyond the period for which this Operation Order is effective, This has been done to acquaint all ele- ments of the Task Force at the earliest practicable date with the nature and scope of Operation CASTLE. There will be three (3) or four (4) experimental devices tested at the AiC Pacific Proving Ground. There may be an air drop during Operation CASTLE. There are three (3) possibilities at present: a. Two (2) thermonuclear devices (NAN and OBOE) will be detonated at BIKINI. Two (2) fission devices (PETER and SUGAR) will be detonated at ENIWETOK. b. One (1) thermonuclear device (NAN) will be detonated at BIKINI. (3) devices(OBOE thermonuclear, TARE and suGAR fission) will be detonated at EXIWETOK. c. I!" Three . Three (3) devices (NAN, PETER and SUGAR) will be detonated at ENIWETOK. All personnel based on ENIWETOK ATOLL will be evacuated prior to each therm- nuclear ENIWETOK shot, in two or three days, Reentry after cach shot is expected to be accomplished Because of the possible residual radiation it may be necessary to quarter personnel aboard ship for a period of three to ten days. All personnel based on BIKINI ATOLL will be evacuated prior to each BIKINI shot, In the event of two shots at BIKINI, reentryy.2d operation of the second base camp will be required after the first shot. In the event of one shot at BIKINI, or after the second shot of two shots, reentry will be limi- ted to t covery of scientific instrumentation and data. type facilities will be constructed at BIKINI. Bel No permanent ~~--