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

Nato needs a "quantum leap" in defence to deter threats to the alliance, its secretary general has said, as he called for Western allies to invest more in their armed forces. In a speech in London, Mark Rutte said Russia could be ready to use military force against Nato within five years.

Washington’s European allies must make a “quantum leap” in military spending to deter Russia, the head of NATO is expected to say Monday, calling for a 400% increase in the continent’s air and missile defense budget.