Yemen crisis: BBC gets rare access to Houthi rebels
The western-backed government of Yemen is under pressure from rebel groups which have spread throughout the country.
In the south, al-Qaeda militants have gained control of a large amounts of land.
Meanwhile, the little-known Shia Houthi rebels have launched offensives in the north and recently took control of the capital Sanaa.
Safa Al Ahmed has gained exclusive access for BBC Arabic to one of the Houthi fighting groups.