Yemen's no longer a proxy war in a remote location. A Saudi-led coalition has begun air strikes to stop the Iran-allied Houthi, who already control the capital, from taking over the whole country. Egypt, Jordan, the Gulf States, Sudan and Pakistan are getting involved - a Sunni coalition backed by US intelligence. The US is also assisting Iran-backed Shiite forces against the IS group. Will this contradiction undermine a nuclear deal with Iran? Is this the start of total war in the region?
Produced by Sara Bertilsson and Emerald Maxwell