NATO summit 'successful' declares Johnson, despite obvious tensions

The two-day NATO summit in London has wrapped up, with members vowing to stick together against threats from Russia and terrorism, and recognise the challenge of a rising China. But leaders of the world's most powerful military alliance also clashed over personality and policy, laying tensions bare for the world to see.

The Princess Royal talks to Canadian Prime Minister Justin Trudeau (left) and Prime Minister Boris Johnson Source: AAP