Sgt. Juan Gonzalez, paraloft chief for Company C, 4th Reconnaissance Battalion, Marine Forces Reserve, checks the distance left before a jump during Exercise Northern Strike 2016 at Camp Grayling Joint Maneuver Training Center, Mich., Aug. 16, 2016. Reserve Recon Marines practice jumping from the back of C-130s to meet their requirements and perfect their skills. Exercise Northern Strike 16 is a National Guard Bureau-sponsored exercise uniting approximately 5,000 Army, Air Force, Marine, and Special Forces service members from 20 states and three coalition countries. The exercise strives to provide accessible, readiness-building opportunities for military units from all service branches to achieve and sustain proficiency in conducting mission command, air, sea, and ground maneuver integration, and the synchronization of fires in a joint, multinational, decisive action environment.