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Acting U.S. Secretary of Defense Patrick Shanahan (front, L) welcomes NATO Secretary General Jens Stoltenberg (front, R) upon his arrival at the Pentagon in Arlington, the United States, on Jan. 28, 2019. (Xinhua/Ting Shen)
Acting U.S. Secretary of Defense Patrick Shanahan (front, L) welcomes NATO Secretary General Jens Stoltenberg (front, R) upon his arrival at the Pentagon in Arlington, the United States, on Jan. 28, 2019. (Xinhua/Ting Shen)