Ed Miliband has called for a new strategy involving nations in the Middle East to help tackle the causes behind the rise of Islamic State (IS).
Writing in the Independent, the Labour leader says the military power of the US has "a big role to play" but argued that taking on the terrorist group needs a wide-ranging plan.
"We can only comprehensively defeat Isis with a multilateral alliance, embracing the region, for political, diplomatic and humanitarian action," Mr Miliband says.
He also backed a plan from France's president, Francois Hollande, for an international conference
The PM wants to confiscate passports. But in Cardiff they want to solve extremism at it's roots - they just can't get the help to do it.
David Cameron has unveiled a series of new measures to combat the threat of terrorism.
Rumours suggesting London's Tube network will be targeted in a terrorist attack on Monday are "completely untrue", police say.