News Summary

• Yemen has been devastated by a civil war that began in 2014, when the Houthis ousted the government from the capital, Sanaa.
• The conflict escalated in 2015, after a Saudi-led coalition of Arab states intervened in an attempt to restore the government's rule.
• Now, following a Saudi request, the UK has said it will deploy a military aircraft to help refuel Saudi Arabian fighter jets taking part in "purely defensive" missions.
• The BBC's Frank Gardner has this analysis of the move.