Harsh criticism of Ukrainian government at this moment and without deep insight into the situation, secret to general public, is therefore inappropriate and premature.
There are currently lots of speculations about negotiations and possible diplomatic solution to military conflict in Donbas. I am however very skeptical about the success. Of course I am not diplomat, so hereafter is purely my personal opinion.
There have been suggestions from several persons (including myself) that studying history of Yugoslav Wars could be beneficial for understanding the things and decision making in Ukraine. These conflicts are arguably the most similar historical events and both similarities and differences could help to provide better understanding and better prediction of the developments in the territories of the former Soviet Union.
Croatia has gained independence only recently, nevertheless during Middle ages it was independent state and even after losing independence, it retained certain degree of autonomy up to the First world war. This means that through the most of its history Croatian nobility existed and Croatian soldiers had chance to fight for its homeland, not merely for the foreign ruler.