Ukraine, Middle East, North Africa and Security

I thank the right hon. Gentleman for his confirmation that we are using the United Nations to point out the importance of cutting off financial support to ISIL. Is he talking to Governments around the world and ensuring that the Treasury is equally engaged in ensuring that messages go out to banking systems and individuals that it is not a good thing to channel funds to ISIL and that, if they are not cut off now, these murderous individuals will come into their countries?