BBC's Barbara Plett Usher looks at what lays behind US moves to flood the region with weapons.Read more
Barbara Plett Usher
A cholera outbreak is spreading in Yemen, where two years of conflict means hospitals are struggling to cope.
These skyscrapers were built from mud in the 16th century in Yemen. Some are 11 stories high. They are still inhabited to this day. It was in this area that people first learned how to live in concentrated environments and is known as “the Manhattan of the desert”.