No end in sight for Yemen conflict Yemen’s civil war has been raging since 2015 and has caused one of the largest humanitarian crises in the world, with an estimated 75 percent of the population in need of assistance, according to the UN Areas of control: November 2017 Government / Saudi-led coalition Houthis and allies Sparsely populated Border between North and South Yemen before unification in 1990 OMAN 160km 100 miles Sadah Sanaa Red Hodeida Sea Taiz SAUDI ARABIA Al Bayda Aden YEMEN Al Mukalla Areas with Al Qaeda presence Gulf of Aden TIMELINE OF YEMEN’S INSTABILITY 1990s: Houthi religious movement emerges, aimed at reviving Zaidi Shia traditions of Yemen’s north 2004: Houthis launch uprising amid crackdown by Yemeni President Ali Abdullah Saleh (left) and killing of group’s founder, Hussein al-Houthi 2012: Following widespread Arab Spring protests against his 30-year rule, Saleh steps down in favour of his deputy, Abdrabbuh Mansur Hadi 2014: Saleh and his still-loyal forces form alliance with Houthis, helping them to seize capital, Sanaa. Hadi flees to Saudi Arabia 2015: Saudi-led coalition of Arab states intervenes in support of Hadi, launching airstrikes and naval blockade against Iran-backed Houthis Dec 2017: Houthis kill Saleh as their alliance falls apart, sparking fears of further chaos and bloodshed. Fighting and airstrikes have killed more than 10,000 civilians and displaced three million since 2015 Population of Yemen (millions) 29.3 People in need of humanitarian assistance 22.2 People in acute need 11.3 Sources: Business Insider, Economist, UNOCHA Picture: Getty Images © GRAPHIC NEWS