BBC , London :Foreign ministers from 22 countries are meeting in London to discuss ways to co-ordinate their efforts to combat the jihadist group Islamic State (IS).IS controls large swathes of Syria and Iraq and the US-led coalition has been carrying out air strikes since August.But UK Foreign Secretary Philip Hammond insisted much more needed to be done.He told the BBC that the countries wanted to find ways to halt the flow of recruits to IS, cut off its funding and “tackle the underlying narrative”.They will also look at providing more military assistance to those fighting IS on the ground, and more humanitarian aid to its victims.BBC diplomatic correspondent James Robbins says the recent attacks by Islamist militants in France have put even greater political pressure on governments to show decisive results.