 The Kearney also fired its main gun, but it has a much shorter range, and Robertson was determined to keep the Houthi drones and missiles as far away as possible. We never had anything come even remotely close. And what do you consider close? Inside of five miles. But the Kearney and the other Navy ships patrolling the Red Sea could not protect every commercial vessel from Houthi attacks. One sank. The Defense Intelligence Agency plotted these successful attacks over just a four-month period.