For Moldova is simple. We are the next.
Why it matters for USA?
http://www.reuters.com/article/2014/03/14/us-ukraine-crisis-idUSBREA1Q1E820140314
http://www.nytimes.com/2014/03/15/world/europe/john-kerry-russia-ukraine-talks.html?hp&_r=0
http://www.bbc.com/news/world-europe-26583697