Iran's regime has warned Donald Trump it will strike back "without restraint" if he decides to join Israel's military campaign against the country. But with comparably limited power what might they target and what damage could they actually inflict? Associate Fellow at the think tank Chatham House's Middle East and North Africa Programme, Lina Khatib, analyses their threat.

The World in 10 is the Times' daily podcast dedicated to global security. Expert analysis of war, diplomatic relations and cyber security from The Times' foreign correspondents and military specialists.

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Iran could strike the US - at home or abroad