In July 1968 one of the most significant international treaties of the 20th-century was signed, the Nuclear Non-Proliferation Treaty, to try to stop the spread of nuclear weapons. Show more
Discover 11,128,835 listings and 277,868 playable programmes from the BBC
In July 1968 one of the most significant international treaties of the 20th-century was signed, the Nuclear Non-Proliferation Treaty, to try to stop the spread of nuclear weapons. Show more