Yemen

Yemen's Huthi militias vowed Monday to avenge the killing of their top political leader in what they said was a Saudi-led coalition air strike, the highest-ranking rebel to die in the three-year conflict. Saleh al-Sammad, head of the Huthis' supreme political council, was "martyred" last Thursday in the eastern province of Hodeida, the Iran-allied rebels said via their Saba news agency. Sammad's death is a major blow to the Shiite rebels who have been fighting…