Yemenis inspect damage following overnight air strikes by the Saudi-led coalition targeting the Houthi rebel-held capital Sanaa on Jan. 18. The air strikes were retaliation for a deadly Jan. 17 Houthi attack against Abu Dhabi.
Displaced Syrians, who fled their homes in Deir Ezzor city, carry boxes of humanitarian aid supplied by United Nations Children's Fund (UNICEF) at a refugee camp in Syrias northeastern Hassakeh province on February 26, 2018. (DELIL SOULEIMAN/AFP/Getty Images)