Ukraine crisis: What is happening behind closed doors?

NATO is taking a cautious approach to Russian claims it is pulling back some of its troops from near Ukraine.

Speaking ahead of a meeting of defence ministers, NATO Secretary-General Jens Stoltenberg says Russia has not yet moved towards de-escalation on the ground, but he is "cautiously optimistic" about the prospects of a diplomatic solution, although the Kremlin has denied it is planning to invade.

Former defence secretary, Sir Michael Fallon tells Forces News what happens behind closed doors, and what kind of things are discussed when NATO defence chiefs meet.