United Kingdom's Prime Minister Theresa May stated that nuclear threat from North Korea and Russia is "very real", BBC reports.
According to May, it would be "quite wrong" for UK to agree on the nuclear disarmament. She added that nuclear weapons remain an important part of the security provision for half a century.
May also accused Russian President Vladimir Putin of sabotaging the international norms.
"It is clear that by Crimea annexation Russia wants to sabotage the standards of the international law to study its own interests", she said.