Speaking at the Nato Summit in Wales, UK Prime Minister David Cameron was coy on talks of British airstrikes against the so-called Islamic State, saying that building up Kurdish and Iraqi ground forces was the priority.

"You've seen real unanimity here, that everyone has to play their part. We have to make ourselves safer at home, we have to help those on the ground, like the Kurds, we need a new Iraqi government that can represent all of the people. We need to make sure that players and countries in the region and neighbours help out with this work and, yes, we work with our allies to help those people on the ground and take all the steps necessary to put the squeeze on ISIL. That's what today has been about; real unanimity and proposals for important action," he said.

"Let's be clear, what is required is not some Western intervention that leaves others in the region to pick up the pieces. What is required is action on the ground, from the Kurds, from the new Iraqi government, from the neighbouring states, all that pressure being applied and then yes of course there is a role that countries like Britain and America and others can play; we're already playing that role, we're arming the Kurds, we're helping the Iraqi government, we're flying missions over Iraq, we're supplying humanitarian aid. The Americans have been taking part in air strikes, which we support, all those things need to go together. I think sometimes people think there is no strategy unless it simply consists of airstrikes; that's not the case. What you need is a fully formed strategy to squeeze this from every angle and that's what you're getting from this conference today," he added.