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Russia, Belarus, Kazakhstan, and Ukraine sign Lisbon Protocol to START-I, agreeing to accede to the nonproliferation treaty as non-nuclear-weapons states and to destroy or return to Russia all nuclear weapons on their territories.

May, 1992

Russia, Belarus, Kazakhstan, and Ukraine sign Lisbon Protocol to START-I, agreeing to accede to the nonproliferation treaty as non-nuclear-weapons states and to destroy or return to Russia all nuclear weapons on their territories.