Yemen's Houthi rebels shot down a U.S. drone on November 8. The Houthis have also launched three rounds of attacks against Israel. In the first, in late October, a U.S. Navy warship operating in the Red Sea shot down projectiles launched by the group. In the second, on October 27, drones caused explosions in two Egyptian Red Sea towns. In the third, on October 31, Israel used its Arrow defense system to destroy an incoming ballistic missile.