Dr. Jill Biden, Second Lady of the United States, listens to remarks by Marine Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, at the USO 75th Anniversary Reception Feb. 4, 2016. (DoD Photo by Navy Petty Officer 2nd Class Dominique A. Pineiro)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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