Strategic Nuclear Forces of the World, March 2008
Part 2: United States

under construction
compiled by Wm. Robert Johnston
last modified 14 April 2008



These tables summarize world strategic and theater nuclear forces. In addition to forces traditionally classified as strategic, information on theater nuclear forces (range in excess of 500 km) are included, since many of these forces are (or could be) assigned strategic missions (in contrast to tactical, or battlefield, missions). Numbers of deployed systems are given for January 1992 (end of the Cold War), January 2000, March 2008 (present), and December 2012 (approximate culmination of START retirements).

These pages are under construction. Please refer to the Introduction for further details, explanation of table and abbreviations, and sources.


United States

type system warhead cep
(m)
range
(km)
number deployed notes sources
Jan
1992
Jan
2000
Mar
2008
Dec
2012
ICBM Minuteman II 1 x 1.2 mt
W56 (tn)
450 13000 450 0 0 0 in 1700-psi silos; IOC Jan 1966, off alert Sep 1991, retired May 1995 C84a, N92a,
N96a
Minuteman III Mk 12 3 x 170 kt
W62 (bf?)
190 13000 200 200 0 0 in 2000-psi silos; IOC Aug 1970; retired Feb 2008 C84a, N92a, N00a, N06a
1 x 170 kt
W62 (bf?)
190 . 0 0 30 0 in 2000-psi silos; IOC with SERV warhead in Oct 2006; as of 2008 based near FE Warren AFB in three states: WY (19), NE (85), and CO (46) A98a, C84a, N00a, N06a
Minuteman III SERV 1 x 300 kt
W87 (tn)
100 . 0 0 120 200 C84a, N06a
Minuteman III Mk 12A 3 x 335 kt
W78 (tn?)
190 11300 300 300 150 0 in 2000-psi silos; IOC Dec 1979; as of 2008 based near Malmstrom AFB, MT (150) and Minot AFB, ND (150) A98a, C84a, N92a, N00a, N06a
2 x 335 kt
W78 (tn?)
190 . 0 0 150 50 A98a, C84a, N00a, N06a
1 x 335 kt
W78 (tn?)
190 . 0 0 0 200 .
MX Peacekeeper 10 x 300 kt
W87-0 (tn)
80 11000 50 50 0 0 in 2200-psi silos; IOC Oct 1986, retired Sep 2005 C84a, N00a, N06a
Minuteman IV 1 x ? . 13000? 0 0 0 0 IOC in 2018? N06a
SLBM Poseidon 10 x 40 kt
W68 (bf)
460 4600 160 0 0 0 16 per Lafayette/James Madison/Benjamin Franklin-class SSBN; IOC Mar 1971, off alert Oct 1991, retired Aug 1992 C84a, N92a
Trident I 8 x 100 kt
W76 (bf?)
300 7400 192 0 0 0 16 per James Madison/Benjamin Franklin-class SSBN; IOC Oct 1979, retired 1994 C84a, N92a
8 x 100 kt
W76 (bf?)
300 7400 192 192 0 0 24 per Ohio-class SSBN; IOC 1982, downloaded to 6 warheads each in 2001, retired in Oct 2005 C84a, N92a, N00a, N06a
Trident II Mk 4 8 x 100 kt
W76 (bf?)
150 . 46 168 0 0 24 per Ohio-class SSBN; IOC 1992, downloaded to 6 warheads each in .; as of 2008 home ports at Bangor, WA (9 SSBN) and Kings Bay, GA (5 SSBN), includes 2 SSBN in refit, average 7 SSBN at sea on alert N92a, N00a, N06a
6 x 100 kt
W76 (bf?)
150 . 0 0 270 0 N00a, N06a
4 x 100 kt
W76 (bf?)
150 . 0 0 0 120 N00a, N06a
Trident II Mk 4A 6 x 100 kt
W76-1 (bf?)
150 . 0 0 2 0 24 per Ohio-class SSBN; IOC in Mar 2008, see above for basing N06a
4 x 100 kt
W76-1 (bf?)
150 . 0 0 0 120 .
Trident II Mk 5 8 x 475 kt
W88 (tn-s?)
120 7400 50 48 0 0 24 per Ohio-class SSBN; IOC Mar 1990, downloaded to 6 warheads each in ., mixed with missiles carrying W76 warheads, see above for basing N92a, N00a, N06a
6 x 475 kt
W88 (tn-s?)
120 . 0 0 64 0 N06a
4 x 475 kt
W88 (tn-s?)
120 . 0 0 0 96 .
Trident II Mk5 E2 4 x 400 kt?
RWW-1
50 . 0 0 0 0 24 per Ohio-class SSBN, IOC in 2014 N06a
? . . . 0 0 0 0 on new SSBN(X), IOC in 2029? N06a
SB B-52G Stratofortress <12 x ALCM and 4 x NGB 10000 45 0 0 0 retired 1992 N92a
conventional 10000 40 . 0 0 for conventional missions; IOC 1958 *
B-52H Stratofortress <20 x ALCM 12000 80 56 56 56 as of 2008 based at Barksdale AFB, LA (38), and Minot AFB, ND (18); currently not on alert N92a, N00a, N06a
conventional 12000 15 38 38 0 reserve aircraft; IOC 1961; as of 2008 based at Barksdale AFB, LA (9), .. N06a
B-1B Lancer 16 x NGB/ALCM 9000 84 0 0 0 IOC Oct 1986, all converted to conventional roles by 1997 N92a, N00a
non-nuclear 9000 13 94 81 67 conventional missions or training/testing; as of 2008 based at Dyess AFB, TX (38) and Ellsworth AFB, SD (29) N00a
B-2A Spirit NGB . 0 16 15 20 IOC 1995, currently not on alert; as of 2008 based at Whiteman AFB, MO N00a, N06a
B-2A Spirit conventional . 0 5 4 0 for testing, as of 2008 based at Whiteman AFB, MO N00a, N06a
ALCM ALCM-B 1 x 150 kt
W80-1, variable yield 5-150 kt
30 2400 1600 400 400 400 IOC Dec 1982; as of 2006 based at Barksdale AFB, LA (300) and Minot AFB, ND (100) A98a, N06a
ACM 1 x 150 kt
W80-1, variable yield 5-150 kt
30 3000 100 460 0 0 IOC Mar 1991; retired 2007 A98a, N06a
JECM 1 x 150 kt? . . 0 0 0 0 possible ALCM replacement N06a
NGB B53 Y1 1 x 9 mt
(tn-d)
. 0 5 0 0 0 IOC Oct 1962, retired 1997, as of 2008 awaiting disassembly *
B61-6/7 1 x 500 kt
(tn) yield selectable from 10/100/345/500 kt
150 0 800 0 0 0 IOC Sep 1985 N06a
B61-11 1 x 350 kt
(tn) yield selectable from 10/100/350 kt
150 0 0 128 120 160 IOC Feb 1997 N06a
B83-1 1 x 1.2 mt
(tn) yield variable low-1200 kt
150 0 700 128 120 160 IOC 1984 N06a
type system warhead cep
(m)
range
(km)
number deployed notes sources
Jan
1992
Jan
2000
Mar
2008
Dec
2012
SLCM Tomahawk TLAM/N 1 x 200 kt
W80-0 (tn) variable yield
20 2500 0 0 0 0 formerly based on SSN, surface ships; IOC Jun 1984, off alert 1992; as of 2008 about 320 in storage at Kings Bay, GA, and Bangor, WA, could be used on SSN and Ohio-class SSGN C84a, N06a
TB F-15E Strike Eagle 2 x B61-3/4/10 . 80 80 80 80 IOC 1992; as of 2008 based at RAF Lakenheath, UK (55), and Seymour Johnson AFB, NC (25), none on alert; additional conventional-armed aircraft at various locations A98a, K05a, N04a, N05a, N06a
F-16A/B 1 x B61-3/4 . 40 40 40 40 IOC .; non-US NATO aircraft carrying US weapons; as of 2008 based at Kleine Brogel AB, Belgium (20), and Volkel AB, Netherlands (20), none on alert A98a, K05a, N04a
F-16C/D 2 x B61-3/4/10 . 125 100 45 40 IOC .; as of 2008 based at Incirlink AB, Turkey (20), and Aviano AB, Italy (25), none on alert; additional conventional-armed aircraft at various locations A98a, K05a, N04a, N05a, N06a
F-35 JSF 1 x B61 . 0 0 0 10 IOC 2012 N06a
Tornado PA-200 1 x B61-3/4 . 60 40 40 40 IOC .; non-US NATO aircraft carrying US weapons; as of 2008 based at Buchel AB, Germany (20) and Ghedi Torre AB, Italy (20), none on alert A98a, K05a, N04a
NGB B61-3 1 x 170 kt
(tn) yield selectable from 0.3, 1.5, 60, 170 kt
150 0 220 150 95 95 IOC 1979; in US and forward based in Belgium, Germany, Italy, Netherlands, Turkey, UK (see above) K05a, N04a, N06a
B61-4 1 x 45 kt
(tn) yield selectable from 0.3, 1.5, 10, 45 kt
150 0 220 150 95 95 IOC 1979; in US and forward based in Belgium, Germany, Italy, Netherlands, Turkey, UK (see above) K05a, N04a, N06a
B61-10 1 x 80 kt
(tn) yield selectable from 0.3, 5, 10, 80 kt
150 0 70 140 140 140 IOC 1990; in US and forward based in Belgium, Germany, Italy, Netherlands, Turkey, UK (see above) K05a, N04a, N06a


© 2000-2006, 2008 by Wm. Robert Johnston.
Last modified 14 April 2008.
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