International Nuclear Safety Group the Kyshtym disaster, which occurred at Mayak, a Nuclear fuel reprocessing plant in the Soviet Union. Since then, there have been hundreds of nuclear accidents, some considered minor while others were horrendous, with one of the worst accidents being the Chernobyl disaster of April 26, 1986. Involving a nuclear power plant at Chernobyl, now in Ukraine, a combination of nuclear volatility and the disregard of several safety procedures caused an explosion of its fourth reactor, ending in the worldwide environmental and human catastrophe. Following the Chernobyl accident, the IAEA was forced to create a new branch of their organisation to
Nuclear weapons and Ukraine territorial integrity of Ukraine. Despite Russia's claimed annexation of Crimea, which the UN General Assembly rejected as invalid, the Government of Ukraine in 2014 reaffirmed its 1994 decision to accede to the Nuclear Non-Proliferation Treaty as a non-nuclear-weapon state. After the Ukrainian Parliament voted to remove President Viktor Yanukovych from office, a power vacuum formed, and Russia annexed Crimea. The Russian pretext used nationalist and cultural rhetoric, claiming that the Russian military was protecting ethnic Russians from attack in Crimea and Eastern Ukraine. Russia's military actions violated the Budapest Memorandum. Pavlo Rizanenko, a member of the Ukrainian parliament told "USA