This paper is concerned with how the struggle for existence between Russia and Ukraine  would be end, for the result must be vain for the both countries as well as all the rest world.  The theoretical outcome by the present study infers that either Russia or Ukraine must be  beaten out by the opponent completely, and being governed by the country for the time being  only in keeping the high possibility of the outbreak another struggle soon: The relation  between Russia and Ukraine is always unstable over the generation by generation. It is  therefore necessary for us all to seek for the way to eternal peace to avoid such a foolish war.  It is inferred that there exists some hope to peace if the unification theory is applied to the  war between Russia and Ukraine to overcomes the mysteriousness and irrationality of the both  presidents, though the full discussion on the way how to apply the unification theory to settle  down any conflict is left for the future.