United States Nuclear Forces, 2016


Hans M. Kristensen & Robert S. Norris | Bulletin of the Atomic Scientists – TRANSCEND Media Service

Published online: 2 March 2016

LGM-30G Minuteman III
Mk-12A 200 1979 1 W78 x 335 (MIRV) 200
Mk-21/SERV 240 20061 1 W87 x 300 240
TOTAL 440     440
UGM-133A Trident II D5 2882      
Mk-4   1992 4 W76 x 100 (MIRV) 68
Mk-4A   2008 4 W76-1 x 100 (MIRV) 700
Mk-5   1990 4 W88 x 455 (MIRV) 384
TOTAL 288     1,152
B-52H Stratofortress 93/443 1961 ALCM/W80-1 x 5—150 200
B-2A Spirit 20/16 1994 B61-7/-11, B83-1 100
TOTAL 113/60     3004
Nonstrategic forces        
B61-3, -4 bombs n/a 1979 0.3—170 1805
TOTAL       180
TOTAL DEPLOYED       ~2,070
RESERVE       ~2,5986
TOTAL STOCKPILE       ~4,670
TOTAL INVENTORY       ~6,970
  1. The W87 was initially deployed on the MX/Peacekeeper in 1986.
  2. Two additional submarines with 48 missile tubes (total) are normally in refueling overhaul and not available for deployment. They are not assigned nuclear weapons. Sometimes more than two submarines are undergoing maintenance.
  3. The first figure is the aircraft inventory, including those used for training, testing, and backup; the second is the portion of the primary-mission aircraft inventory estimated to be tasked for nuclear missions. As of September 2015, nuclear-capable bombers included 88 B-52Hs and 20 B-2s.
  4. The pool of bombs and cruise missiles allows for multiple loading possibilities depending on the mission. The Air Force has 528 nuclear-armed ALCMs (and more spares), of which an estimated 200 are deployed at Minot Air Force Base. Although B-52Hs can also carry the B61-7 and B83-1 gravity bombs, these are only planned for delivery on the B-2s.
  5. These are deployed in Europe. Another 320 bombs are in storage in the United States, for a total estimated inventory of 500 nonstrategic bombs.
  6. This includes spares.

ALCM: air-launched cruise missile

ICBM: intercontinental ballistic missile

LGM: silo-launched ground-attack missile

MIRV: multiple independently targetable reentry vehicle

SERV: security-enhanced reentry vehicle

SLCM: sea-launched cruise missile

SLBM: submarine-launched ballistic missile

UGM: underwater-launched ground attack missile

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