Another round of U.S. strikes has taken place on Yemen's Iran-backed Houthi rebels, and the Houthis are vowing to retaliate. SUBSCRIBE to ABC NEWS: https://bit.ly/2vZb6yP Watch More on http://abcnews.go.com/ LIKE ABC News on FACEBOOK https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc #news #houthi #yemen #redsea #attack #abcnews