Members of the Popular Resistance, loyal to President of Yemen Abd Rabbuh Mansur Hadi wait for the arrival of United Nations Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, Stephen O’Brien, who was stopped at a Houthi checkpoint when he tried to enter the Yemens southwestern city of Taiz to assess the local humanitarian situation, at Gurab district in Taiz, Yemen on February 28, 2017.

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