Navy Seaman Vacha mans the .50-caliber machine gun aboard Mark VI patrol boat during the unmanned aerial vehicle training exercise in the Pacific Ocean, June 19, 2018. Vacha is a gunner’s mate assigned to Coastal Riverine Squadron 3. Coastal Riverine Group 1 Training and Evaluation Unit conducted the training, which provides a core capability to defend designated high value assets throughout the green- and blue-water environment and provides deployable Adaptive Force Packages worldwide in an integrated, joint and combined theater of operations. Navy photo by Chief Petty Officer Nelson Doromal Jr.