Yemeni Southern separatists supporters wave flags of the former South Yemen (The People's Democratic Republic of Yemen) and the United Arab Emirates as they demonstrate in the Khor Maksar district of Yemen's second city of Aden on August 15, 2019. Yemen's government on August 14 ruled out talks with southern separatists until they withdraw from positions they seized last week in Aden. The fighting saw forces that back the Southern Transitional Council (STC) take five barracks, the presidential palace and the prime minister's office. The fighting sparked tensions within a Saudi-led coalition that backs the government against northern-based Huthi rebels. A key member of the coalition, the United Arab Emirates, trained the force that led the Aden offensive. (Photo by Murad SAID / AFP)