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

"Go get your own oil!" Donald Trump has served notice on his allies, telling them the US won't necessarily clear up the mess he’s making in the Middle East.

And oil is important... for everything. The global economy needs 100 million barrels a day to function. The war in Iran means we're only producing 80 million.

Those missing barrels are having a huge impact on diesel and petrol prices – but that's just the start. Inflation, interest rates, food and utility bills are all set to rise.

What, if anything, can the UK government do to avoid the inevitable economic earthquake?

Niall asks Sky's data and economics editor Ed Conway why he's so worried about the financial effects of the crisis in the Middle East.

Do you have a question for the podcast? Email us: why@sky.uk

The cost of your weekly shop is about to go up – as the war in Iran squeezes the supply of synthetic fertiliser.

The effective closure of the Strait of Hormuz had already caused a spike in energy prices - and is now expected to hit kitchen cupboards in time for summer.

It also presents a fresh challenge for a farming industry growing used to having to dig deep for profits. So, what foods will be impacted and what can be done to bring prices back down?

Niall is joined by Sky’s business correspondent Paul Kelso.