NAVAL BASE GUAM (June 23, 2021) Marines with 4th Marines, 3rd Marine Division conduct a crew-served weapons qualification course during patrol craft integration training at Naval Base Guam, June 23, 2021. The Marines deployed as part of a MKVI Patrol Boat integration program with Maritime Expeditionary Squadron (MSRON) 2 and MSRON 4. MKVI Patrol Boats provide a low-signature platform equipped with an array of weapons and communication systems capable of operating in littoral environments. (U.S. Navy photo Lt. Cmdr. Marvin Jones)