The head of NATO says members need to increase their air and missile defenses by 400% to counter the threat from Russia and warns that Moscow could be ready to attack the military alliance within five years.

In a speech at the Chatham House think tank in London during a visit to the UK on 9 June, NATO Secretary General Mark Rutte warned of the Russian and Chinese

NATO Secretary General Mark Rutte has called for "a quantum leap" in the alliance's collective defense, warning that Russia could be ready to use military force against it within five years.