Why US troop movements matter

Donald Trump has kept the world guessing over whether he will launch a ground invasion in Iran.

However, the arrival of thousands of US paratroopers in the region might be the clearest indication yet of the disrupter-in-chief’s thinking.

A month of airstrikes is one thing but the deployment of troops is quite another - so how would it work? Has Trump learned nothing from Iraq and Afghanistan?

Niall is joined by the former head of the UK armed forces General Sir Nick Carter.

Have you got a question for the podcast? Email us: why@sky.uk