sapeeumennn Ccr HEADQUARTERS, Joint Task Force SEVEN APO 187 (HOW) c/o Postmaster San Francisco, California 7 May 1954 + Annex_B to CJIF SEVEN Operation Order No. 2=5h DWELLIGENCE, SECURITY AND PUBLIC INFORMATION l. intelligence, a. Effect of Enemy Capabilities on JIF SEVEN. The capabilities listed below make it possible for the enemy (considered herein as the Soviets) to take the following action against the operational area: (1) Submarine reconnsissance. (2) ir reconnaissance, (3) Ground reconnaissance or sabotage by landing parties from (.) Raids from submarines or surface ships. (5) Raids by aircraft. submarine. b. Conclusions. Capability (1) is considered the most likely to occur under conditions existing voday. Capability (2) is a possibility but is less likely and capabilities (3), (4) and (5) most likely would be exercised in the event of open hostilities between the United States and the USSR, It is believed that information as to the operations of JTF SEVEN and the ftesults thereof would be of more practical value to the Soviets than hindering or impeding the operation. Security. Security of classified information is the normal responsi- bility of any commander but this responsibility must be reevaluated in the Pacific Proving Grounds where these operations are dealing with Atomic Energy, a development which played an important part in terminating World War II and which constitutes such importance that it has been regulated, controlled and protected by Federal law. The responsibility of each individual in properly safeguarding classified information concerning atomic energy and in preventing its compromise by careless talk or correspondence must be understood by all military ranks and civilians. 3e General Conception. The general conception of the measures to provide security during the non-operational period are generally the sam as during operational periods except where local conditions render them inapplicable. & These measures are as follows: ENIVETOK ATOLL is under the general protection of CINCPAC. b. ENIWETOK ATOLL is closed to all vessels, aircraft and personnel except those cleared for access in accordance with the provisions established by CINCPAC Serial 020, dated 1 April 1952, c. All assigned personnel will be cleared for loyalty and security in accordance with the varying degrees of responsibility. Bel oj heeaaiernsHaart + a Declazzified EERLis £250.10