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9 avril 2014 3 09 /04 /avril /2014 07:20
Les forces stratégiques US en 2018: 1150 ogives nucléaires, 800 vecteurs en parc, 700 en ligne

08.04.2014 par Philippe Chapleau - Lignes de Défense

En vertu du traité START, le DoD a revu la composition de ses forces stratégiques. D'ici à février 2018, il va (un peu) réduire ses vecteurs.

En parc: 454 missiles ICBM de type Minuteman, 280 Trident (à bord de sous-marins lanceurs d'engins) et 66 bombardiers stratégiques de type B-2 et B-52H.

En ligne: 400 ICBM, 240 SLBM à bord de 14 SNLE et 19 B-2 et 41 B-52H.

Le DoD disposera aussi de 1 150 ogives.

Actuellement, la force de frappe US dispose de 454 Minuteman, 336 Trident et de 96 bombardiers stratégiques. 30 B-52H seront convertis pour des missions conventionnelles.

Cliquer ici pour en savoir plus.

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9 avril 2014 3 09 /04 /avril /2014 07:20
DoD To Shrink Nuclear-Capable Bombers, Modify Subs to meet New START Obligations

A B-52 Stratofortress launches July 2, 2013, from Andersen Air Force Base, Guam. The Air Force will convert 30 B-52 bombers to a conventional-only role under the New START treaty. (US Air Force)


Apr. 8, 2014 - By MARCUS WEISGERBER – Defense News


WASHINGTON — The Pentagon will shrink the number of its nuclear weapon-carrying bomber aircraft and reduce the number of submarine ballistic missile launch tubes as it modifies its force posture to meet the limits of the New START treaty with Russia, the US Defense Department announced Tuesday.


The New START treaty, signed between Washington and Moscow in 2010, sets lower levels for the number of deployed and non-deployed nuclear weapons allowed. Non-deployed status means the delivery system, a bomber, a submarine or an intercontinental ballistic missile (ICBM) launch silo is undergoing maintenance and cannot fire a weapon.


The Air Force will convert 30 B-52 bombers to a conventional-only role, meaning they could not deploy nuclear weapons, a senior defense official said. That will leave the service with 66 nuclear-capable B-52 and B-2 bombers, 60 of which will be in deployed status.


There are 336 ballistic missile tubes on the Navy’s 14 Ohio-class submarines. Four tubes on each of the Navy’s 14 submarines will be converted “so that they cannot be used to launch missiles,” the senior official said. The submarine-launched ballistic missile tube limits under New START are 240 deployed and 40 in non-deployed status.


DoD plans to remove warheads from 50 of its 450 ICBM launch silos, the senior official said. The cuts will be distributed across the Air Force’s three ICBM bases in Wyoming, North Dakota and Montana.


“They’ll be warm, so they’ll be active,” the official said. “They’ll still all be hooked up in their missile fields, but they’ll be empty.”


Four hundred silos will still have nuclear ICBMs inside, the official said. DoD has four additional launch silos that are used for test launches are not impacted by the New START treaty.


The modifications will cost about $300 million over several years, the official said. The reductions must be made by 2018.


The New START treaty also limits the number of warheads on deployed forces to 1,550

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8 avril 2014 2 08 /04 /avril /2014 19:20
Minuteman III intercontinental ballistic missile (ICBM) test launch from Vandenberg Air Force Base,

Minuteman III intercontinental ballistic missile (ICBM) test launch from Vandenberg Air Force Base,


Apr. 8, 2014 - By JENN ROWELL, (GREAT FALLS, MONT.) TRIBUNE – Defense News


The Pentagon announced Tuesday that it will remove 50 Minuteman III missiles from its silos to meet nuclear reductions called for under an arms-reduction treaty with Russia.


The empty silos will remain in warm status, meaning they will remain fully operational and can be armed with missiles at any time.


The Air Force and U.S. Strategic command will determine which 50 missiles will be pulled from the 450 silos currently deployed across the three missile fields operated by Malmstrom, F.E. Warren and Minot Air Force bases.


The empty silos count toward the non-deployed launcher limit of 800 under the New START treaty, which was ratified by the Senate and entered force in 2011.


The determination of which missiles will be removed hasn’t been made yet and there’s currently no timeline for that decision other than the New START deadline of February 2018.


To keep all 450 silos, the military has to make other cuts to the nuclear force to meet the limits of 800 non-deployed and 700 deployed launchers.


The Navy will convert 56 launch tubes, or four on each of its 14 nuclear submarines, so they can’t be used to carry nuclear weapons. They will also remove weapons from 40 launch tubes and keep 240 armed, for a total of 280 counted toward the New START limit of 800.


The Air Force will also convert 30 B-52H bombers to conventional aircraft so that they cannot carry nuclear weapons.


The Air Force will maintain 66 nuclear-capable bomber aircraft.


Because the silos will remain fully operational, no ICBM squadrons will be cut, according to defense officials. An environmental assessment also is no longer needed.


Sen. Jon Tester, D-Mont., said Monday night that the plan is good for Montana and good for national defense strategy. He also said ICBMs continue to be the most cost-effective leg of the nuclear triad.


“Right now, for the dollars spent, the ICBMs are the most effective component,” he said. “No ifs, ands or buts about that.”


Keeping 50 silos empty at all times allows the Air Force to conduct more thorough maintenance without disrupting normal operations, Tester said. The empty sites will also continue to be secured by Air Force security units.


“[ICBMs] are still our ace in the hole, and we need to make sure that’s there so that our country has a strong defense,” Tester said. “We have got these assets, we don’t ever want to have to use them, but if we need to use them, they’re there.”

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