How much worse can Yemen’s humanitarian crisis become?

For over a decade, Yemen has been experiencing one of the world's most severe humanitarian crises. The latest escalation of fighting between the government and the Houthis has worsened the suffering of millions, with over 200,000 people displaced in five weeks according to the UN. Aid agencies are alarmed by the speed of displacement and the potential for further deterioration. Experts and international officials warn about the challenges of operating in Yemen and the possible worsening of the crisis.