.. . -HEADQUARTERS,’ Joint Task Force SEVEN Washington25, D. C. 1 October 1957 Annex C to JTF SEVEN OperationPlan No. 1-58 INTELLIGENCE,SECURITYAND PUBLIC INFORMATION 1. Intelligence a. Summaryof Enemy Capabilities. A hostilenation is capableof obtaininginformationfrom, or interferingwith, the operations of the joint task force by the followingactions: (1) Collectionof informationdisclosedby personnelof the joint task force through failureto observesecurityprecautions. (2) Espionageby penetrationof subversivepersonnelinto the task force, or as a resultof defectionof ~rsonnel withinthe task force. (3) SabotaEeaccomplishedby penetrationof personnelinto the task force or by defectionof personnelwithinthe task force. (4) Submarinereconnaissance. (5) Ground reconnaissanceor sabota~ by landtigpartiesfrom submarines. (6) Air or surfaceship reconnaissance. (7) Attack by any combinationof militaryforces. b. Conclusions. Under conditionsexistingtoday, it is considered that the jointtask force is most vulnerableto capabilities(1), that capability (2) and (3). It is consideredvery improbatile (4) will be exploited,since very little informationof value could be obtainedby this means. Capabilities(5) and (6) involve varyingdegrees of overt action,and would”ako be affectedby variationsin the shot schedule;consequentlY~their employmentis considereda remotepossibility. It is consideredthat capability (7) wouldbe exercisedonly in the event of open hostilitiesbetween the United States and a hostile power. Securit~ a. General. The ENIWEI!OK-BIKINI closedareas, EniwetokProving Ground @PG),are the securityresponsibilityof the Commanderin-ChiefPacific (cINCpAC). The EPG is closedto all personnel except those whose officialduties requirethan to be present. The travel of authorizedpersonnel,ships,and aircraftinto the EPG is to be conductedin accordancewith the provisionsof CINCPACLetter ‘FF-l,A16-1, Serial020, datedl April 1952. The Commander,JTF SEVEN,will be responsiblefor securityof the EPG during the operationalperiod, as authorizedby CINCPAC,and has overall responsibilityfor the securityindoctrinationof personnel of the jointtask force. b. References. Securityregulationsissued by the Departmentsof the Army, the Navy, and the Air Force, the Atomic Energy Commissionand the Commander,Joint Task Force SEVEN are listedbelow for ready reference. OPNAV Instruction551O.I.A Army Regulation38CL5 Air Force Re@ation 205-1 Volume 2000, AEC GM SecurityBulletinsand AEC Manual., (Security) -