It has been a week of war in the Middle East, sparked by the US and Israel launching strikes on Iran.

But the US-Iran rivalry didn't start then - it has been a fractious relationship for decades, spanning several US presidents.

In our latest episode of Sky News Explains, Olive Enokido-Lineham looks at the key moments in US-Iran history, examines the complicated geopolitics of the region, and tries to find out how it could all end.

Watch the full episode at the top of this article.

Before re-launching Sky News Explains, Olive specialised in verification and open-source investigations (OSINT). Her stories include investigations into the war in Gaza, to verifying videos from Ukraine and Syria.

Olive also produced the Sky News documentary Escaping Putin, which follows a Russian soldier who fled from the army.