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Numbers of weapons. Total number of nuclear missiles built, 1951-present: 67,500 Peak number of nuclear warheads and bombs in the stockpile: 32,193 in 1966 Total number and types of nuclear warheads and bombs built, 1945-1990: more than 70,000

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Numbers of weapons

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numbers of weapons
Numbers of weapons

Total number of nuclear missiles built, 1951-present: 67,500

Peak number of nuclear warheads and bombs in the stockpile: 32,193 in 1966

Total number and types of nuclear warheads and bombs built, 1945-1990: more than 70,000

Number of nuclear warheads requested by the Army in 1956 and 1957: 151,000

Projected operational U.S. strategic nuclear warheads and bombs after full enactment of the Strategic Offensive Reductions Treaty in 2012: 1,700-2,200

Additional strategic and non-strategic warheads not limited by the treaty that the U.S. military wants to retain as a "hedge" against unforeseen future threats: 4,900


SALT I (Strategic Arms Limitation Talks Agreement, also known as Strategic Arms Limitation Treaty) 1969

froze the number of strategic ballistic missile launchers at existing levels

provided for the addition of new submarine-launched ballistic missile (SLBM) launchers only after the same number of older intercontinental ballistic missile (ICBM) and SLBM launchers had been dismantled.

SALT II 1979

controversial experiment of negotiations between Jimmy Carter and Leonid Brezhnev from 1977 to 1979

sought to curtail the manufacture of strategic nuclear weapons. It was a continuation of the progress made during the SALT I talks, led by representatives from both countries.

SALT II was the first nuclear arms treaty which assumed real reductions in strategic forces to 2,250 of all categories of delivery vehicles on both sides

not ratified in response to the Soviet invasion of Afghanistan


Anti-Ballistic Missile (ABM) Treaty

part of SALT I

signed on May 26, 1972 and entered into force on October 3, 1972.

United States withdrew on June 13, 2002

barred deploying nationwide defenses against strategic ballistic missiles.

originally permitted two fixed, ground-based defenses of 100 missile interceptors each.

July 3, 1974, the two sides halved the number of permitted defenses.

Soviet Union around Moscow

United States ICBM base near Grand Forks, ND (shut down 3 months later beciase of cost)


START I ( STrategic Arms Reduction Treaty)

signed on 31 July 1991 and entered into force on 5 December 1994

Maximum deployment of 6,000 nuclear warheads

Maximum of 1,600 ICBMs, submarine-launched ballistic missiles, and bombers.

resulted in the removal of about 80 percent of all strategic nuclear weapons then in existence.

expired 5 December 2009.


Treaty signed 1993

banned the use of MIRV's (multiple independently targetable reentry vehicles)

(2002) Russia withdrew from the treaty in response to U.S. withdrawal from the ABM Treaty.


Strategic Offensive Reductions Treaty (SORT) - Treaty of Moscow

June 2003 until February 2011

limited nuclear arsenals to between 1700 and 2200 operationally deployed warheads each

no verification provisions

reductions not permanent; warheads not destroyed,could be later redeployed.



Halves the number of strategic nuclear missile launchers

new inspection and verification regime established

does not limit the number of operationally inactive stockpiled nuclear warheads (high thousands each)

weapons production
Weapons production

Peak number of operating domestic uranium mines (1955): 925

Fissile material produced: 104 metric tons of plutonium and 994 metric tons of highly-enriched uranium

Amount of plutonium still in weapons: 43 metric tons

States with the largest number of nuclear weapons (in 1999): New Mexico (2,450), Georgia (2,000), Washington (1,685), Nevada (1,350), and North Dakota (1,140)

Total known land area occupied by U.S. nuclear weapons bases and facilities: 15,654 square miles

Total land area of the District of Columbia, Massachusetts, and New Jersey: 15,357 square miles

i m alright jack or at least i will be
I'm alright, Jack!(or at least I will be)

Number of secret Presidential Emergency Facilities built for use during and after a nuclear war: more than 75


Total number of U.S. nuclear weapons tests, 1945-1992: 1,030 (1,125 nuclear devices detonated; 24 additional joint tests with Great Britain)

First and last test: July 16, 1945 ("Trinity") and September 23, 1992 ("Divider")

Largest U.S. explosion/date: 15 Megatons/March 1, 1954 ("Bravo")

Volume in cubic meters of radioactive waste resulting from weapons activities: 104,000,000


Number of U.S. nuclear bombs lost in accidents and never recovered: 11

Cost of January 17, 1966 nuclear weapons accident over Palomares, Spain (including two lost planes, an extended search and recovery effort, waste disposal in the U.S. and settlement claims): $182,000,000

nuclear defence
Nuclear Defence

Strategic Defense Initiative (SDI)

“Star Wars”

Now the Ballistic Missile Defense Organization (BMDO)

Ground-based programs

Exoatmospheric Reentry-vehicle Interception System

Directed-energy weapon (DEW) programs

Hypervelocity Rail Gun

High Energy Capacitor Module Advanced Technology Experiment (CHECMATE)

Brilliant Pebbles