Saar-5
Silly question here. Why don’t the Israelis build missile defenses onto their oil platforms and man them with Navy personnel? There’s no power problem. They can have really tall masts for look down and distance. They can build other anti-missile defenses to jam incoming devices. They’d have none of the space restrictions you’d have on a ship. Also, a few cannon will discourage other types of attack. (Oh, by-the-way, don’t forget attack by frogmen.)