Pew finds that most Americans don’t want the U.S. to be “too involved” in the crisis in Ukraine. Even Republicans are reluctant:

Despite the near-unanimity among elected officials and in most of the media that the U.S. ought to be “leading” in response to the seizure of Crimea, there is a striking lack of public support for any possible punitive measures. Fortunately, support for military options is vanishingly small, but it is a bit disturbing that it exists at all. There is more interest in sanctioning Russia regardless of political affiliation, but not that much more, and even most Republicans prefer that the U.S. refrain from taking these actions. Among those following the situation closely, there is an almost even split between 47% in favor of a “firm stand” and 43% preferring much less involvement. The general desire to “not get too involved” isn’t the result of believing that Russian actions are justified. Americans overwhelmingly believe that they aren’t (68%), but that doesn’t translate into much support for a punitive response.