let s get more from our security correspondent, frank gardner. this is a potential route to further escalation of the israel hamas war. the hu theis, who have controlled much of yemen for the last nine years houthis, they control that course, they are backed by iran. time and again they have spoken of what they call their brothers, hamas. three ships have been attacked by their drones and missiles yesterday. the us navy missiles yesterday. the us navy missile guided destroyer that was the in area came to their aid. it is possible that came under fire as well. it is not clear if that was directed against the us warship as well. the us navy warship took defensive action and shot down two of the drones, but there were some hits on the ships. the reason why this is the risk of escalation is that the us has said that this is a threat to maritime security and commercial shipping, and that it was going to consider the appropriate response in conjunction with its allies and partne