My saying that stupid paraphrases like "Putin says he will nuke the world" are in no way useful doesn't mean I don't think it's a dangerous situation. It COULD escalate outside of Ukraine.Peace through strength works. Biden, and many other latte sipping, naive Democrats, believe that weakness will promote peace. Authoritarians like Putin take advantage of weakness. Look for China and N. Korea to make some moves in the short term. Democrats need to WAKE UP and GROW UP before it is too late.
We are trying collective security sanctions with more strength than ever before in history (and mostly informal, not governmental, like FaceBook and so many others suddenly pulling out of Russia) and I am very interested in whether they will work. They did not work in the 1930s because they didn't put pressure on the aggressor country's weakest spots: they should have closed the Suez Canal, and also stopped all imports of oil to Italy.
We aren't hitting the weakest point now, either, which would be a total boycott of all Russian oil and thus all their foreign currency. Europe won't --- they have no energy source that can replace Russian oil. Ours has mainly a leadership effect (and Britain immediately followed us) but that may not be enough.