After five years of war, 13,000 deaths, more than 2m internally displaced people and billions of dollars in economic destruction, progress towards settling the conflict in eastern Ukraine would be very welcome.

In fact, much more will be at stake when the leaders of France, Germany, Russia and Ukraine meet in Paris on December 9 for their first direct talks about the region in more than three years.

The heart of the matter is whether western governments and Russia are in the mood for a lasting accommodation over Ukraine, the pivotal country in Europe’s post-cold war order. Even though the US will be absent from the Paris discussions, Washington knows no less than its allies that stability on the European continent will never be assured as long as Ukraine’s place in this order remains undefined.