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Iraqi President Fuad Masoum (Front) mourns at the Tomb of the Unknown Soldier in Warsaw, Poland, on Nov. 6, 2017. Iraqi President Fuad Masoum Masoum is on a two-day visit to Poland. (Xinhua/Jaap Arriens)

Iraqi President Fuad Masoum (Front) mourns at the Tomb of the Unknown Soldier in Warsaw, Poland, on Nov. 6, 2017. Iraqi President Fuad Masoum Masoum is on a two-day visit to Poland. (Xinhua/Jaap Arriens)