Who is an "ally"? A country we do business with? Do we have some kind of treaty that if some country attacks your ship, we have a green light to go and bomb them? Sorry, we are not the world's policemen. Defend your own shipping. As far as I am aware, they only attack ships who do business with Israel. Let Israel attack them. As far as "defends known terrorists", I don't, not even when it is my own country doing the terrorism. Nor do I defend Israel's murder of Arabs in Gaza (and soon, the West Bank).