U.N. disarmament chief Izumi Nakamitsu has stressed the need to reaffirm the Nuclear Non-Proliferation Treaty as a pillar of the global security system following Russia's threat to use nuclear weapons in its war against Ukraine, as nations gather for the pact's review conference from Monday.In a recent interview with Kyodo News, the U.N. undersecretary general and high representative for disarmament affairs said she will pursue concrete results in the areas of nuclear risk reduction measures and the peaceful use of nuclear energy during the talks at the U.N. headquarters in New York.The las…READ FULL ARTICLE