Thank you, Mr. Chair.
I think the question we get to is this: what do we use as measures of effectiveness?
In the case where there are very few troops on the ground putting pressure at this point in the campaign on ISIL forces, one of the measures of success is how many targets our aircraft are finding. When that number is low, in fact what that's indicating.... Compared with when we go back to five or six ago when there were masses of armour and vehicles of ISIL roaming at will across Iraq, what we find amongst our aircraft now is that those have all disappeared, and therefore, ISIL finds it very difficult to mass and to bring their forces to bear. So I think one of the measures of effectiveness would say that those aircraft being there, delivering weapons or not, have been very effective.