OFFICE OF THE SECRETARY OF DEFENSE 1 Jun 79 Uynuwfbr REC Advance copies were to Gompert 5 Thomson NSC PB has their chron cy by 5 of 6 Barb Page determined to be Unclassified Reviewed Chief DOD 05R Date DCC- - 90m 0 12958 Section 3 5 R4 08 0538 Ilil'i'li'lill ASSESTANT SECRETARY OF DEFENSE anni 31 INTERNAT In reply refer to SECURITY AFFAIR i-351u5 79 CY has CY cy Orig-AddeeIl PDI PREPD Drennon PB S MEMORANDUM FOR MR DAVID GOMPERT DEPUTY DIRECTOR BUREAU OF I MILITARY AFFAIRS DEPARTMENT OF STATE SUBJECT SIOP Revision 0 Several adjustments which will become effective October 1 1979 being made to the Selected Attack Option SAD Structure of the US Single Integrated Operational Plan SIOP These adjustments re- flect evolutionary refinements in our targeting which will provide additional measures of flexibility and increase our ability to control escalation in the event of Warsaw Pact aggression against NATO see attached draft message for further detail The JCS propose to introduce these changes into NATO military channels by message to SACEUR and SACLANT We believe it prudent that the subject be introduced simultaneously in NATO political I channels The attached draft cable to USMISSION NATO recommends that Ambassador Bennett draw on the JCS message to inform NPG PermReps of the adjustments being made in the US I U Request State transmit the attached cable We understand the last meeting of NPG PermReps planned before Fall is scheduled for June A Authority 5012958 as amended 6L Edema cc Chief 000 on of Security Review LVALIER SLOCOMBE - Acting Assistant Secretary of Defense Attachment International Security Affairs a s cc Mr James Thomson NSC Revi z COPIES SECSTATE NASH DC DECLAS IFIED DE TO USMI SIO NATO Aughority 5012958 at Chief DOD Ute of Security Review INFO us DEL nc BE USNMR BE VA CINCLANT NORFOLK VA VAIHINGEN1 GE DSTP OFFUTT AFB- NE 7 JS 3 308 5 REVISION OF US SINGLE INTEGRATED OPERATIONAL PLAN l- ON APPROXIMATELY JUNE H1 1979 THE JOINT CHIEFS OF STAFF INTEND TO TRANSMIT TO SACLANT THE MESSAGE QUOTED BELOM- THE JCS MESSAGE IS INTENDED TO INTRODUCE INTO NATO MILITARY CHANNELS INFORMATION ON THE RESTRUCTURING OF SOME NE RECOMMEND THAT YOU DRAM ON THE JCS MESSAGE TO ADVISE NATO POLITICAL AUTHORITIES THROUGH THE NPG PERMREPS OF THE ADJUSTMENTS TO BE MADE IN THE SIOP- JCS MESSAGE E- JCS SEND- SIOP REVISION l- AT THE APRIL 73 NUCLEAR PLANNING GROUP SECRETARY BROUN RECONFIRMED THAT US NUCLEAR UEAPON EMPLOYMENT POLICY CONTINUES TO STRESS THE NEED FOR US NATIONAL COMMAND Os 1051111 DECLASSIFIED DEC 1 4 2009 4 - Authority E0 12958 as amended Chief Die 01 Security Review BE IN THE ROUTINE PROCESS OF REVIEWING SIOP OPTIONS1 UE CONTINUE TO NAKE EVOLUTIONARY REFINEHENTS IN OUR TARGETING AND FORCE PLANNING THAT MILL PROVIDE ADDITIONAL MEASURES OF FLEXIBILITY TO THE SIOP AND THAT RECOGNIZE ALLIED INTERESTS AND COHPLEHENT EXISTING THEATER NUCLEAR FORCES- JS WERE- H FURTHER DETAILS REGARDING THESE PLANS WILL BE 03 PROVIDED YOUR STAFF VIA THE EXISTING MILITARY LIAISON CHANNELS THROUGH YOUR REPRESENTATIVES TO THE END QUOTE- VANCE COORDINATION ISA PPENSCA A z l4 - 050m 1 OJCS-JS NSC DECLASSIFIED DEC 1 4 2009 Authority E0 12958 as amended Chief Doufofc of Security Review PREPARED BY COL P- R- DRENNON X55513 IIECLASSIFIED DEC 1 4 2009 Authority E0 12958 as amended Chief Ofc of Security Review QRE SECURITY INTRAOFFICE CONTROL SH DATE 29 May 1979 mitigate 79 CURRENT SUSPENSE DATE SUBJEC Coordination of JCS Message to SIOP Revisions SUMMARY Descrich brie y the requirement background and acIion recommended as 323 bx 5 U Origin JCS n BACKGROUND 5 one result of he Nuclea Tar Policy Review the JCS to increase the are updating the flexibility of our nuclear plans and enhance the potential for controliIng es calation in areas of paramount interest to NATO see proposed message at Tab A of JCS package for details The proposed message is intended to officially introduce into NATO ertructuring of To introduce the we propose the draft message next under be transmItted to USMISSION NATO - PURPOSE channels the militar indicated on the JCS form 9 and U RECOMMENDATION coordinate where approve the draft message to USMISSI NATO HALTER SLOCOMBE 31 MAY 1979 Acting Assistant Secretary of Defense 5- 35 5 International Security Affairs foo INTEQNAL COORDINATIOII mm one 15 0 INTERNAL COORDINATION INITIAL DATE SECRETARY 5 AFF EXECUTIVE OFFICER x0 om ansc AFF PD RECORDS CONTROL RC DEP DIR NSC AFF PH PRINCIPAL ASSISTANT SA DIR MBFR TF PF L I Dir Nuclear Policy PB jkf use FOR ucno TO DASD ECON a AFF a I spec ASST FOR CONG REL 05' I DIRECTOR IEA BD 5 PRINCIPAL DASD f1 1 I I can STA 1- LI MILITARY ASST PRINCIPAL PW spec ASST To PDASD DT 7 DASD FOR 5 DIR FMRAFFAIRS IF DIR 5A PLAN56 POLICY MD 651' FOR ADMINISTRATION A0 PLANS PROGRAMS DIV HP DASD FOR EAR-PAC AFF A POLICY DIV MN DIR-EAGPAC REG AD 17 A1 I DEF SCTY ASYTAGCY 3 DASD EURISNATO AFF om eunaNATO AFF ED 23 4 27 DEP DIR TD DIR I-A REGION IA spec ASST TB OASO NE AFF COMPTROLLER TC DIR NEASA REG NE ron SALES NEG T5 DIR AFRICAN REG NA COORDINATION OUTSIDE ISA on reveree ACTIVITY A ANAME AND TITLE INITIAL DATE DUSDIPRI OJCS-JS 911 jj f removal at ecomes NAKAE DIRECTORATE EXTENSION AND SIGNATURE OF- ORIGINATIN COL DRENNON x55819 4