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U.S. soldiers on M113 armored vehicles take part during the Warrior Strike VIII exercise at the Rodriguez Range on Sept. 19, 2017, in Pocheon, South Korea. (Chung Sung-Jun/Getty Images)
U.S. soldiers on M113 armored vehicles take part during the Warrior Strike VIII exercise at the Rodriguez Range on Sept. 19, 2017, in Pocheon, South Korea. (Chung Sung-Jun/Getty Images)