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"The Arms Control Association’s work is an important resource to legislators and policymakers when contemplating a new policy direction or decision."

– General John Shalikashvili
former Chairman of the Joint Chiefs of Staff
U.S. and Soviet/Russian Strategic Forces
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START I was signed July 31, 1991, and entered into force on December 5, 1994. Under the treaty, the five parties—the United States, Russia, Belarus, Kazakhstan and Ukraine—semi-annually exchange memorandum of understanding (MOU) data providing numbers, types, and locations of accountable strategic nuclear weapons. The table below compares the number of START-accountable deployed warheads declared in the Seprember 1990 MOU with data from the January 1997 MOU, demonstrating the progress the parties have made in nuclear force reduction thus far.

—For more information, contact ACA.

 


U.S. Strategic Forces:

Warheads by Delivery System1

  September

1990

January

1997

ICBMs    
MX 500 500
Minuteman III 1,500 1,770
Minuteman II 450 115
Total 2,450 2,385
SLBMs    
Poseidon (C-3) 1,920 320
Trident I (C-4) 3,072 1,664
Trident II (D-5) 768 1,920
Total 5,760 3,904
Bombers    
B-52 (ALCM) 1,968 1,656
B-52 (Non-ALCM) 290 56
B-1 95 93
B-2 0 17
Total 2,353 1,822
Total Warheads 10,563 8,111

Soviet/Russian Strategic Forces:

Warheads by Delivery System1

  September 19902 January

19973

ICBMs    
SS-11 326 0
SS-13 40 0
SS-17 188 0
SS-18 3,080 1,860
SS-19 1,800 1,020
SS-24 silo 560 100
SS-24 rail 330 360
SS-25 288 360
Total 6,612 3,700
SLBMs    
SS-N-6 192 16
SS-N-8 280 208
SS-N-17 12 0
SS-N-18 672 624
SS-N-20 1,200 1,200
SS-N-23 448 448
Total 2,804 2,496
Bombers    
Bear (ALCM) 672 504
Bear (Non-ALCM) 63 10
Blackjack 120 48
Total 855 562
Total Warheads 10,271 6,758

Strategic Forces on Non-Russian Territory1

  Belarus Kazakhstan Ukraine
ICBMs 0 0 414 (SS-19)

460 (SS-24)

SLBMs 0 0 0
Bombers 0 0 200 (Bear)

152 (Blackjack)

Total 0 0 1,226

NOTES

1. Warhead attributions are based on START I counting rules. This results in bombers having fewer warheads attributed to them than they actually carry. On the other hand, even though all nuclear warheads from Ukraine have been removed to Russia, they remain START-accountable until the delivery systems have been destroyed. [Back to Table 1 , 2 or 3]

2. Includes weapons in Belarus, Kazakhstan, Russia and Ukraine. [Back to Table]

3. Weapons in Russia only. [Back to Table]

Sources: START I Memorandum of Understanding, January 1, 1997; ACA.