The night Ukraine gave up its nuclear weapons

It was a night of intense negotiation which would change the world order as Ukraine gave up its nuclear weapons. Thousands of nuclear arms had been left on Ukrainian soil after the collapse of the Soviet Union. But in the years that followed, Ukraine made the decision to denuclearise. Clive Myrie examines what was at stake in Budapest in 1994, how the deal was finally reached and how it went on to shape the world we face today.