We've just had a paradigm shift. Our politicians realised that if they were lapdog to American adventurism again without a clear UN mandate,they would be destroyed at the next election. They put their own careers first to defy the Prime Minister for the first time since 1702 or some such date. As a result, Obama is actually forced to present a cogent argument to Congress. This is not trivial. No one can explain why we should act on Syria but ignore the catastrophes in North Korea and elsewhere. America is not the world, nor is the UK. I'm glad to see we're making some progress in accepting our post-hegemonic state. America is next to realise that there's only so many wars a Caesar can wage before the treasury is empty........
"Won't get fooled again"
That's it, in a nutshell.