The hon. Gentleman puts his question very well and goes to the heart of it. If resolution 2401 is to mean what it says, it is a ceasefire for the whole of Syria. The United Kingdom was part of that and it stands by it. As I said earlier, what happens with resolutions now is that, if there is not sufficient will on the ground, we do not get where we need to be and the international order is affected. That is one reason why we are so consistent in talking to our Turkish partner about de-escalation, the need for de-escalation and the need for humanitarian access and in urging all parties in the area to try to find a way beyond the conflict.