== Belligerents in infobox == 

 Someone denoted that the Unites States and the European Union are one of belligerents in the conflict. What is it based on?? In such manner another might state that the United Nations or the Council of Europe are also one of the belligerents. The article omits the fact that the conflict rotates around the Budapest Memorandum, according to which all its signatories are required and obligated unconditionally to respect sovereignty of Ukraine and help it in case of aggression.