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Opasnosti (アパースナスチ Apāsunasuchi?), also known as Nu-AD1967, is a former Soviet Union strategic nuclear warhead.[1][2]

EtymologyEdit

"Opasnosti" (Опасности) is Russian for "dangerous", derived from "opasnost" meaning "danger".[1]

PrinciplesEdit

The Opasnosti is a strategic nuclear warhead and requires a confirmation code from the Russian president in order to be detonated, but the security lock is located within the warhead's outer shell, meaning that the contents can be removed and placed in a new outer shell to create an exchanged warhead capable of being detonated without the code.[2]

The Opasnosti warhead itself weighs approximately 2 tons.[3] There is a slight depression and small window in the side of the warhead, with an optical sensor under reinforced glass for remote firing via an infrared signal.[4][3] The circuitry is protected by thick lead and reinforced glass,[4] and there are three points connecting the warhead to its computer.[3]

During the attempted deployment against the Star of Bethlehem during World War III, the exchanged Opasnosti warhead was mounted on a 20 meter long missile.[5] The launch vehicle was truck-like, larger than a train car, with over 20 tires and hydraulic cylinders on which the missile stood vertically,[5] with a supporting arm to keep it upright.[5][4]

BackgroundEdit

The Opasnosti (known as the Nu-AD1967 in America) was developed during the time of the Soviet Union.[1][2]

Following the end of the Cold War and the collapse of the Soviet Union, the Opasnosti was among the warheads which leaked from Russia, which were sold with the goal of being used but mostly not able to be detonated due to the matter of the confirmation code, with the nuclear material being removed from the original outer shell with the security lock and placed into a new shell in order to bypass the confirmation code required to detonate it.[2]

Various organizations trying to gain independence from Russia created these exchanged warheads, but Russia later hunted the warheads down in special military operations, claiming it was taking responsibility for the weapons they had created and working for world peace. Official records stated that the warheads were disassembled and the nuclear material reused as fuel for nuclear reactors, but a number were kept as reserves which could be fired at any time without permission from the president.[2]

ChronologyEdit

Toaru Majutsu no IndexEdit

World War III ArcEdit

Main article: World War III Arc

After Fiamma of the Right betrayed Nikolai Tolstoy, the bishop ordered the independent military unit under his command to bring out the "reserves" and blow away the Star of Bethlehem, despite the repercussions of exploding a nuclear weapon at that altitude.[6][2] Misaka 10777 later intercepted information about the plans for a large-scale surface attack against the flying fortress involving the Nu-AD1967 or Opasnosti.[1][2]

The independent unit prepared to fire a missile carrying an exchanged Opasnosti warhead at a distance of 70km from the fortress.[2] Misaka Mikoto and Misaka 10777 stole an Academy City tank and charged through the unit's forces in order to stop the launch, nearing the launch vehicle as the missile was about to fire. As the missile started its engines for launch, Mikoto knocked out the launch vehicle's control circuits.[5][4]

With the launch interrupted and the supporting arm removed, the missile toppled over. Shortly afterwards, the independent unit's remaining officers were split over whether to continue, having lost contact with Nikolai, but decided to continue. With most of the resources and personnel needed to prepare the missiles out of commission due to Mikoto's attack, the fallen missile was the only one they could use. Unaware that it had collapsed, they tried to fire it remotely with an optical transmission.[4] However, Mikoto managed to cover the sensor on the warhead with a cloth before it could receive the infrared signal, averting the risk of the warhead detonating on the ground.[4][3]

While the panicking officers were being surrounded elsewhere by a Russian special forces unit, Mikoto destroyed the warhead's connectors to render it unusable.[3]

ReferencesEdit

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