The political move here is that the US now has legitimacy to operate in Ukraine. The US is not offering "blind and free military support", but rather, it is "protecting its economic interests." Let's see how this plays out, but we may find that bully Russia now has to stand up to someone their own size.
https://www.nbcnews.com/politics/politics-news/us-ukraine-sign-economic-deal-terms-natural-resources-war-torn-country-rcna203963