Girls wait to get school bags provided by a local aid group, Mona Relief Yemen, at a public school in Sana'a, Yemen. Mona Relief Yemen has distributed school bags to encourage girls to keep attending classes as the number of out-of-school children is estimated more than two million, compared to 1.6 million before the ongoing war escalated in Yemen in 2015.  EPA

Explained: why the US is considering Houthi terror designation