The U.S. Center for Countermeasures (CCM) has released new details on the testing of the High Energy Laser with Integrated Optical Dazzler and Surveillance (HELIOS) system, a directed energy (DE) weapon installed on the Arleigh Burke-class destroyer USS Preble (DDG 88).The annual report, published in January 2025, outlines the Navy’s demonstration of HELIOS aboard USS Preble, verifying its functionality, performance, and capability in engaging an unmanned aerial vehicle (UAV) target.According to the report: “CCM supported the Navy’s demonstration on USS Preble (DDG 88) to verify and validate the functionality, performance, and capability of the HEL with Integrated Optical Dazzler and Surveillance system against an unmanned aerial vehicle target. CCM collected imagery of the engagements to support the evaluation of system performance.