A young Yemeni boy holds a weapons as tribal gunmen loyal to the Shiite-Huthi movement gather for a demonstration against the Saudi-led intervention in the country in the Bani al-Harith area, north of the capital Sanaa, on August 6, 2015. Yemen has been riven by violence since a Saudi-led coalition launched air strikes against Huthi rebels earlier this year after they and troops loyal to ousted president Ali Abdullah Saleh approached Aden after seizing Sanaa in September.
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