[Margaret Pilkington]

I don't think it should be seen as a retaliatory attack for what happened in Salisbury.
I think that the combined forces of three countries was a way to deter anyone from linking the two...especially Russia.
It was(I think) a way to get across to the Syrian government, that the use of chemical weapons is forbidden.
The Syrian government deny the use of Chlorine gas and sarin, but they have used these agents before...and these are their own people that they are using them against.