Add Yahoo as a preferred source to see more of our stories on Google. A Walter Reed National Military Medical Center Sailor conducts her physical fitness assessment. (MC3 Julio Martinez Martinez/U.S.

Add Yahoo as a preferred source to see more of our stories on Google. Special Warfare Combat Crewman trainees face rigorous training, but they, and other combat arms sailors must now take an annual on ...

Think the fitness tests you did in gym class were tough? The U.S. military has been putting its service members through the wringer for decades, but the way they measure strength and readiness is ...