Navy Junior Reserve Officers Training Corps (NJROTC) cadets from Centennial High School in Las Vegas, Nevada, perform curl-ups during the athletic portion of the 2017 NJROTC National Academic, Athletic and Drill Championship on Naval Air Station Pensacola, Florida, April 7.

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Keywords: air, america, archive, armed, army, cadets, corps, curl-ups, defence, force, forces, junior, military, navy, nevada, officers, perform, reportage, reserve, service, serviceman, servicemen, soldier, states, training, united, usa