United States elect president Donald Trump called for an expansion of the United States nuclear capabilities.
Trump wrote on his tweeter account that "United states must greatly strengthen and expand its nuclear capability until such time as the world comes to the senses regarding nukes."
Trump spokesman Jason Miller later said Trump was "referring to the threat of nuclear proliferation and the critical need to prevent it - particularly to and among terrorist organisations and unstable and rogue regimes."
Trump tweet came after earlier this week Russia President Vladmir Putin release statement "called for strengthen military potential of strategic nuclear forces, especially with missile complexes that can reliably penetrate any existing and prospective missile defence systems."