Ukraine was the third-largest nuclear power in the world.
Thousands of nuclear arms had been left by Moscow after the collapse of the Soviet Union in 1991. Ukraine decided to denuclearize, and in exchange, the U.S., U.K. and Russia would guarantee Ukraine's security in 1994
Ukraine was the third-largest nuclear power in the world.
Thousands of nuclear arms had been left by Moscow after the collapse of the Soviet Union in 1991. Ukraine decided to denuclearize, and in exchange, the U.S., U.K. and Russia would guarantee Ukraine's security in 1994