Gunnery Sgt. Timothy Bos teaches a networking class during exercise Warrior Challenge 18 on Camp Foster, Okinawa, Japan, Jan. 23, 2018. Warrior Challenge 18, Marine Wing Communications Squadron 18’s internal squadron exercise, increases Marine’s technical skills, builds unit cohesion, and rehearses the communications support prior to the execution of Key Resolve 18. Bos is the cyber network systems chief for detachment alpha, MWCS-18, Marine Air Control Group 18, Marine Aircraft Group 36, 1st Marine Aircraft Wing. ( Marine Corps

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