Whether this ceasefire or some future one proves durable, Ukraine must eventually make some very difficult decisions concerning its future. Above all, it must figure out a way of exiting the steel trap that has clamped down on its nether regions. The Crimean peninsula has already been sliced off. Should Ukraine sever another one of its own limbs in order to survive?
The scent of nationalism was present in the former-Yugoslavia before Vladimir Putin effectively assumed power in Moscow. Already during the early stages of the conflict in Bosnia & Herzegovina, "BiH" solutions were being fashioned in the hope of, well appeasing is perhaps an appropriate term, those leaders in the region but also Moscow who saw feudal nationalism as the vehicle to replace authoritarian communism.
The problem with the United Nations is that it's a unity of entities defined by their hatred of one another and committed to the perpetuation of "the scourge of war." We won't begin creating global peace until we learn how to bypass nationalism and the single, unacknowledged agreement binding nation-states to each other: the inevitability of war.