9 years ago Ukraine’s northern neighbour, Belarus, vocally opposed Russia’s annexation of Crimea and was staunchly a non-nuclear state.

Now it’s host to Russian troops, and is just taking delivery of Russian tactical nuclear weapons. We explain the U-turn, and ask if it’s the start of a new ‘Soviet Union lite’?

NATO’s looking for a new leader, and the UK’s Defence Secretary is seen as one of several potential frontrunners. A former NATO insider explains how the whole process is a bit like appointing a new Pope. And we hear from Estonia – where British troops lead NATO deterrence – about the Baltic state’s latest threat assessment