Donald Trump’s new National Security Strategy prioritises improving relations with Russia and China, while calling for resistance to “weak leaders” in Europe.

Professor Michael Clarke explains why he thinks this will embolden Russia rather than giving it an incentive to de-escalate, and former US State Department insider Dr Karin von Hippel assesses what it could mean for the US military footprint in Europe.

The head of the Royal Navy has warned we’re “only just holding on” against Russia deep in the Atlantic.  Former submarine captain Ryan Ramsey explains why the service is struggling, while Sian Grzeszczyk Melbourne reveals how and why the First Sea Lord’s speech has caused big waves in Whitehall.

And our sovereign bases in Cyprus have played a key role in almost every major British overseas operation in living memory.  So why did the UK nearly abandon them 50 years ago?