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U.S. Secretary of Defense Mark Esper (L) welcomes Australian Prime Minister Scott Morrison at the Pentagon in Arlington, Virginia, the United States, on Sept. 20, 2019. (Photo by Ting Shen/Xinhua)
U.S. Secretary of Defense Mark Esper (L) welcomes Australian Prime Minister Scott Morrison at the Pentagon in Arlington, Virginia, the United States, on Sept. 20, 2019. (Photo by Ting Shen/Xinhua)