The idea of deploying U.N. peacekeepers to Eastern Ukraine was broached several months ago amid growing intensity in diplomacy surrounding the conflict between Russian-backed separatists and pro-government forces there. This weekend’s Munich Security Conference will offer a chance for more talks over the issue, but given the differences of opinion over the size, scope and mission of any U.N. force, there’s no guarantee that an agreement will be struck. But some signs of compromise over the peacekeepers issue — and the opportunity offered by the security gathering that will attract representatives from key powers — make real movement on the issue a possibility.