Nato countries' pledge to spend 5% of their economic output on defence is Donald Trump's "biggest foreign policy success," the alliance's chief has said.

Axar.az informs In an interview with the BBC, Mark Rutte said it was thanks to Donald Trump that Nato was "stronger than it ever was", adding that Trump "is good news for collective defence, for Nato and for Ukraine".

The Nato secretary general said it was "insane" that Putin's pursuit of his "historical idea that you want to regain access to Ukraine" - or over the entire territory that used to constitute the former Soviet Union - had caused the death or serious injury to 1.1m of his people.

The Nato chief told the BBC that "Russia will see that, with the security guarantees in place, he should never ever try again to attack Ukraine because our reaction will be devastating and that's exactly what we are now discussing".