Search results
Results from the WOW.Com Content Network
The United States is known to have possessed three types of weapons of mass destruction: nuclear, chemical, and biological weapons.As the country that invented nuclear weapons, the U.S. is the only country to have used nuclear weapons on another country, when it detonated two atomic bombs over two Japanese cities of Hiroshima and Nagasaki during World War II.
The United States is one of the five nuclear weapons states with a declared nuclear arsenal under the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), of which it was an original drafter and signatory on 1 July 1968 (ratified 5 March 1970). All signatories of the NPT agreed to refrain from aiding in nuclear weapons proliferation to ...
US nuclear weapons were also deployed in Canada as well as Greece from 1963. However, the United States withdrew three of the four nuclear-capable weapons systems from Canada by 1972, the fourth by 1984, and all nuclear-capable weapons systems from Greece by 2001. [120] [121] As of April 2019, the United States maintained around 100 nuclear ...
The pre-Hiroshima nuclear history of the United States began with the Manhattan Project.This Manhattan Project was the nuclear program for warfare. Even before the first nuclear weapons had been developed, scientists involved with the Manhattan Project were divided over the use of the weapon.
The Enduring Stockpile is the United States' arsenal of nuclear weapons following the end of the Cold War. During the Cold War the United States produced over 70,000 nuclear weapons. By its end, the U.S. stockpile was about 23,000 weapons of 26 different types.
Exploded diagram of the Mk21 reentry vehicle for the W87 [clarification needed]. The W87 is an American thermonuclear missile warhead formerly deployed on the LGM-118A Peacekeeper ("MX") ICBM. 50 MX missiles were built, each carrying up to 10 W87 warheads in multiple independently targetable reentry vehicles (MIRV), and were deployed from 1986 to 2005.
It was designed for deployment on cruise missiles and is the warhead used in all nuclear-armed ALCM and ACM missiles deployed by the US Air Force, and in the US Navy's BGM-109 Tomahawk. It is essentially a modification of the widely deployed B61 weapon, which forms the basis of most of the current US stockpile of nuclear gravity bombs.
The W30 was an American nuclear warhead used on the RIM-8 Talos surface-to-air missile and the Tactical Atomic Demolition Munition (TADM).. The W30 was 22 inches (56 cm) in diameter and 48 inches (120 cm) long, weighing 438, 450, or 490 pounds (199, 204, or 222 kg) depending on the version.