716. Memorandum from General Carroll to McNamara, October 241

S73, 308/P2
[Facsimile Page 1]

SUBJECT

  • (U) DIACIA Assessment of Status of Soviet Military Personnel in Cuba

1. In response to a Presidential requirement levied by Mr. McGeorge Bundy [illegible in the original], we have collaborated with CIA in a new assessment (attachment) of the status of Soviet military personnel in Cuba. Prime conclusions follow:

2. Since the October crisis of 1962, the Soviets have been engaged in a continuing program of withdrawing military personnel from Cuba. Most of the Soviets still in Cuba are advisers and technicians engaged in training Cuban personnel in the operation of Soviet weapons, in supervising the use and maintenance of Soviet equipment turned over to the Cubans, and in operating and controlling the surface-to-air missile (SAM) system. We believe that no organized Soviet ground combat units remain in Cuba and that the only Soviet ground forces personnel remaining are those advising Cuban military units. Based on our continuing appraisal of Soviet activity, we estimate Soviet military strength in Cuba at present to be about five to seven thousand, although it may be even lower.

Joseph F. Carroll
Lieutenant General, USAF
Director
[Facsimile Page 2] [Typeset Page 1829]

Attachment

JOINT CIADIA MEMORANDUM

OCI No. 3158/63

SUBJECT

  • Assessment of Status of Soviet Military Personnel in Cuba

Summary

1. Since the October crisis of 1962, the Soviets have been engaged in a continuing program of withdrawing military personnel from Cuba. Most of the Soviets still in Cuba are advisers and technicians engaged in training Cuban personnel in the operation of Soviet weapons, in supervising the use and maintenance of Soviet equipment turned over to the Cubans, and in operating and controlling the surface-to-air missile (SAM) system. We believe that no organized Soviet ground combat units remain in Cuba and that the only Soviet ground forces personnel remaining are those advising Cuban military units. Based on our continuing appraisal of Soviet activity, we estimate Soviet military strength in Cuba at present to be about five to seven thousand, although it may be even lower.

2. Of the Soviet weapons introduced into Cuba during the military buildup last year, all—with the exception of the surface-to-air missiles, and possibly the coastal defense cruise missiles and FROGs—have either been withdrawn from the island or transferred to Cuban control. The present trend involves continuing efforts to improve Castro’s independent military capabilities. By mid-1964, Cubans probably will be trained to operate all remaining Soviet weapons, including the surface-to-air missiles. As Cuban proficiency increases, additional reductions in Soviet military personnel probably will take place until only a Soviet military assistance and technical advisory establishment remains.

Withdrawal of Soviet military personnel

3. Since our last assessment in early October, at least 1,000 probable Soviet military personnel have departed. At least 13,000 and probably closer to 16,000 Soviet military personnel have departed since October 1962. Most of these have been withdrawn since February. We continue to lack verifiable evidence of the arrival of more than a few hundreds of Soviet military personnel since last October.

[Facsimile Page 3]

Status of Soviet weapons under Cuban control

4. Cubans are currently being trained in the use of all Soviet weapon systems remaining on the island. At least [less than 1 line not declassified] [Typeset Page 1830] Cuban pilots have achieved a limited combat proficiency in the MIG–21 jet fighters, and additional pilots are being trained. These aircraft were recently transferred to Cuban control and most of the Soviet personnel associated with the MIGs have been withdrawn. Cuban personnel assumed control of the 12 Komar guided missile patrol boats in August, at which time Soviet personnel associated with these vessels left Cuba except for a small number of advisers and technicians.

5. Most Soviet ground forces personnel have been withdrawn from Cuba. Those ground forces personnel remaining—probably between 1,500 and 2,500—are involved in training Cuban units throughout the island. Available evidence suggests that the [less than 1 line not declassified] armored camps have been transferred to Cuban control. The Soviet T–54/55 tanks and other equipment at the camps, with the possible exception of FROGs, have been turned over to the Cubans and some of the equipment moved to Cuban training installations and operational units.

6. The Cubans probably began training in cruise missile operations some months ago and it is possible that the Soviets may have transferred this weapon system to Cuban control. There are probably no more than five hundred Soviet personnel remaining in Cuba associated with the cruise missiles and the number may be substantially lower if the Cubans have in fact assumed some degree of responsibility for the system.

The surface-to-air missile and air defense system

7. The Soviet SAM and air surveillance system in Cuba is currently manned and controlled by about three to four thousand personnel. A large number of Cubans are now receiving classroom training in surface-to-air missile operations and are scheduled to begin operational field training in November. By mid-1964, enough Cubans probably will have been trained to operate the entire SAM system including all of its radar and communications components.

8. A major reorganization of the air defense system is now in progress in Cuba. Since mid-September one third of the SAM sites have been relocated. The pattern of relocations indicates a shift from an island-wide SAM coverage to polar defense of major Cuban cities and military installations. In the process, the SAM guidance radar previously in use is being exchanged for older radar equipment, signifying an intent on the part of the Soviets to transfer the system to Cuban control.

  1. Transmits a DIACIA assessment of status of Soviet military personnel in Cuba. Secret. 3 pp. WNRC, RG 330, OASD (C) A Files: FRC 71 A 2896, Cuba 381, May thru Dec. 1963.