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The lights remain off 24/7 in the tents and K-spans in the Rush Park life support area where personnel deployed in support of Key Resolve 2017 at Osan Air Base, Republic of Korea, March 15, 2017. The K-span, which is a pre-manufactured steel-framed building, can house up to 120 personnel who sleep on both beds and cots and most have wall lockers to secure their valuables. The only lights visible are flash lights and daylight which creeps through the various cracks in the building’s superstructure. Overhead lights permanently stay off for members who work different shifts during the 24/7 operations of KR17.