Much buzz about a possible NATO Arctic Sentry operation helped calm Donald Trump’s talk of taking over Greenland, and the UK is one of the big backers. But do we have enough troops properly trained to operate in some of the world’s harshest conditions

Ex-Royal Marine Tip Cullen shares the hard realities, including freezing eyeballs, while former Infantry officer Ed Arnold assesses whether it would be a worthwhile use of troops.

As a project leader is sacked, and the Defence Secretary says it’s nearly “back or scrap” time for the Ajax armoured vehicle programme, former tank commander Hamish de Bretton-Gordon gives his verdict from a test drive.

And Professor Michael Clarke has read the new US Defense Strategy so you don’t have to.  Spoiler alert – it namechecks President Trump more than fifty times, but says nothing about troop numbers.