What will Donald Trump and the other leaders discuss at the Nato summit?

The meeting is about the future of the alliance and whether it can be saved, writes Jon Stone

Trump and Erdogan’s actions have threatened the bloc’s stability (Reuters)

Most of the coverage of the Nato summit in the UK is focused on Donald Trump’s visit and the effect that might have on the election, but the leaders will have business to discuss.

What are the basics?

The two-day meeting in Watford marks a special occasion: 70 years of Nato’s existence. It will be attended by the alliance’s 29 member states, including Trump, Emmanuel Macron, Boris Johnson, Angela Merkel, Justin Trudeau, and Turkey’s president Recep Tayyip Erdogan.