RIYADH, Saudi Arabia (Reuters) — Saudi-led coalition warplanes waged a series of airstrikes on military targets in the Yemeni capital of Sanaa on Saturday night and early Sunday morning, just few hours after Yemen’s Houthi rebels fired a ballistic missile towards the Saudi capital Riyadh. The warplanes hit several military targets inside Sanaa, including the parade viewing stand in al-Sabeen Square, the nearby presidential palace, the national security headquarters, interior ministry and air defense bases […]