We need to put human rights, a belief in multilateralism and respect for international law back at the heart of foreign policy.

It's not compatible to expect multilateralism to work and, at the same time, to expect to walk out with everything you wanted. This is a recipe for failure. If we prize the system, we have to come knowing that we will need to make compromises. Sometimes painful compromises.

The time has come - and must come - for multilateral conversations about a secure peace in all of Europe.