Ukraine's Issue: Ceasefire and Political Credibility of the West

Certainly, the number of people who were in favor of the truce in Ukraine were almost equal to the number of those who were in favor of continuing the conflicts in the country. European and American supporters of continuing the conflicts were often those who wanted to continue conflicts against the Russia through continuing the disaster in Ukraine. Probably a similar reason to this logic in Russia causes the continuous supports of Moscow for the pro-Russians in East Ukraine.
However, even if we want to look at this case in a pure mechanical way we notice that there are obstacles on using the Civil War as a way to fight against Russia. And the most important barrier is Kiev. Since the West is involved in Ukraine's issue, therefore we must admit that a part of the West's political credibility is now in the possession of the decisions by Kiev. Incorrect decisions by Kiev not only will lead the failure of Ukraine but also the elimination of a part of the West's political credibility.
Kiev has certainly the chance to achieve good advantages as the result of a secret deal with Moscow and finally will bring peace to the country by giving special privileges to Donetsk and Luhansk.
Who will lose in such a deal except the West?!
But the real threat is revealed when Kiev blackmails the West. In other words, by having such an opportunity, Ukraine can decide to persuade the West to gain some especial privileges.
So, as if the West is following to keep tensions with Russia like that of Moscow which is looking for something like this, it is necessary to give no major role to Kiev, in the conflict, in order to guarantee the preservation of the political credibility of the West.