The sad fact is that international politics has always been a ruthless and dangerous business, and it is likely to remain that way. - John Mearsheimer

Offensive realism predicts that the United States will send its army across the Atlantic when there is a potential hegemon in Europe that the local great powers cannot contain by themselves.

With Ukraine, it’s very important to understand that, up until 2014, we did not envision NATO expansion and E.U. expansion as a policy that was aimed at containing Russia. Nobody seriously thought that Russia was a threat before February 22, 2014.

Furthermore there's the whole argument that the administration made, that so many people were killed by chemical weapons. Their number was around 1,400, the fact of the matter is that over 40,000 other people were killed with bombs and bullets, before those 1,400 people. If 40,000 people were killed, and that didn't provide a moral justification for intervention, what's the moral justification for killing people... when 1,400 die with chemical weapons. I don't get it, in fact, I don't think there's a moral case to be made for intervention.