For weeks, President Donald Trump has been threatening to attack Iran and he’s sent what he called an ‘armada’ of combat ships and fighter jets to the region. He’s mentioned two main reasons for the military build-up there: Iran’s nuclear programme and the killing of protesters in the country.

International news organisations are often refused visas to report from inside Iran, so it’s difficult to know exactly how many protesters were killed, but some human rights groups say it could be more than 6,000 people.

In this episode we answer some of your most commonly-searched questions; why is the US threatening to attack Iran, why doesn't President Trump want Iran to have nuclear weapons and what could happen if conflict broke out?

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