So, as new violence erupts in Ukraine, what did Putin promise Kerry and other Western leaders (in phone calls) over the last few weeks?
http://d.hatena.ne.jp/d1021/20150604#1433414235
http://d.hatena.ne.jp/d1021/20150514#1431599847
http://d.hatena.ne.jp/d1021/20150514#1431599849
http://d.hatena.ne.jp/d1021/20150513#1431513800