On November 19th Houthi fighters hijacked a cargo ship with links to an Israeli company . On December 12th a missile launched from a Houthi-controlled area of Yemen damaged a Norwegian tanker, which its owner says was not bound for Israel. French warships have also been targeted. America is trying to drum up support for a naval task-force to deal with the problem. The war between Israel and Hamas has left ripples in the Red Sea. Since the bombardment of Gaza began, the Houthis, a Yemeni rebel group, have launched a series of attacks on cargo ships. Are Houthis actions against Israel justified ?