Some wars start slowly while others spring to life at speed. This one is racing, transforming nations, politics and loyalties at a spectacular rate.

The expansion of Donald Trump's war against Iran to a British base in Cyprus is a nightmare for the UK, which lacks adequate air defences and only has a limited capacity to fight back.

Already there are parts of Iran's densely populated capital city Tehran that look like a pummelled war zone.

There is nowhere else on the planet with quite as concentrated a supply of quite so much energy as the Arabian Gulf.

👉 Listen to This Is Why on your podcast app 👈

A man has been found guilty of murdering a Saudi Arabian student in an unprovoked attack in Cambridge.