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President Barack Obama disembarks Air Force One at Tallinn Airport upon arrival in Tallinn, Estonia, Sept. 3, 2014. The President is greeted by Urmas Paet, Minister of Foreign Affairs; Amb. Jeffrey Levine, U.S. Ambassador to Estonia; Amb. Eerik Marmei, Appointed Estonian Ambassador to the U.S.; Toomas Kahur, Chief of Protocol, Ministry of Foreign Affairs; and Merle Maigre, Security Policy Adviser to the President. (Official White House Photo by Pete Souza)