> So far, whether or not they are right that it would work, they seem to be largely unsuccessful in lobbying, with the US, especially, offering only limited sanctions for the actions related to the separatist regions but holding back the massive general sanctions threatened in case of a broader invasion as a reactive contingency.

Well, a couple hours later and this part is outdated, as the US has now announced the first set of general sanctions on Russia and described existing Russian actions as the beginning of the invasion that was always described as the triggering condition for such sanctions.