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Greek Prime Minister Alexis Tsipras (R) meets with Polish President Andrzej Duda in Athens, Greece, on Nov. 20, 2017. Andrzej Duda is on a two-day official visit to Athens. (Xinhua/Marios Lolos)
Greek Prime Minister Alexis Tsipras (R) meets with Polish President Andrzej Duda in Athens, Greece, on Nov. 20, 2017. Andrzej Duda is on a two-day official visit to Athens. (Xinhua/Marios Lolos)