170710-N-ON977-0100 GUAM (July 10, 2017) Aviation Warfare Systems Operator 1st Class Marcus Monreal, assigned to the “Island Knights” of Helicopter Sea Combat Squadron (HSC) 25, left, and Electronics Technician 1st Class Damon Davis, assigned to Coastal Riverine Group (CRG) 1, participate in a medical evacuation drill aboard a Mark VI patrol boat off the coast of Guam. CRG-1 and HSC-25 are currently testing their interoperability capabilities to enhance their collective maritime mission. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alfred A. Coffield/Released)