Iranian-backed militants step up attacks on commercial ships in Red Sea

The U.S. is now leading an international naval task force to protect the vital shipping lane. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bitly.ws/36cQP WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bitly.ws/35c6s #abcnews #worldnewstonight #militants #navy #middleeast #redsea