Following the 1991 collapse of the Soviet Union, Ukraine, gave up a large nuclear arsenal,leading to the Budapest Memorandum in 1994, where the US, UK, and Russia pledged security assurances in exchange for Ukraine's nuclear disarmament.
Following the 1991 collapse of the Soviet Union, Ukraine, gave up a large nuclear arsenal,leading to the Budapest Memorandum in 1994, where the US, UK, and Russia pledged security assurances in exchange for Ukraine's nuclear disarmament.