Yemen’s civil war began in 2014 when the Houthis drove the internationally recognised government from the capital. A Saudi-led coalition, backed by Britain, has been trying to restore the government to power. The Houthis, who are backed by Iran, deny the allegations that they target children.
Reporter: BBC International Correspondent Orla Guerin
Produced by: Orla Guerin, Goktay Koraltan, Claire Read, Suad Al-Salahi and Wietske Burema