May I congratulate the Foreign Secretary on his trip? I agree with him that it is absolutely essential that we maintain energetic engagement with all the regional powers, particularly Iran, and use our very considerable diplomatic expertise and influence to resolve what he rightly says are problems that cannot be solved by war and must be solved by diplomacy. Finally, will he pay a warm tribute to the British armed forces that, collectively, have played the most remarkable and yet unsung role in the defeat of Daesh?

I warmly thank my right hon. Friend for his tribute to our armed forces. I have heard it echoed many times in my travels overseas, nowhere more than in the middle east, where they understand that we are the second biggest contributor to the war against Daesh in terms of the aerial bombardment, which has now been successful. Although that is not the end of the conflict with Daesh—it is not the end of the struggle—we should pay tribute to what our armed forces have achieved so far.