In the UK, some MPs believe there should be greater European leadership of Natopublished at 13:18 BST13:18 BST

Paul AdamsDiplomatic correspondent Donald Trump's latest warning that he might be thinking of pulling out of Nato clearly stems from a major fit of pique over the reluctance of members to play a more active role in the war with Iran. Put aside for a moment the fact that joining wars of choice beyond Europe was never the purpose of the alliance, and that the US attacked Iran, not the other way around. The president’s disenchantment with Nato has been well known for a decade. Angry over the failur