President Barack Obama and First Lady Michelle Obama arrive for the 70th session of the United Nations General Assembly
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President Barack Obama greets United Nations Secretary-General Ban Ki-moon after addressing the 70th session of the United Nations General Assembly
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President Barack Obama, United Nations Secretary-General Ban Ki-moon and Russian President Vladimir Putin sit together during a luncheon hosted by Ki-moon
President Barack Obama jokes with South African President Jacob Zuma, who was talking on the phone
President Barack Obama greets Ukrainian President Petro Poroshenko
President Barack Obama waits to deliver remarks during a Leaders Summit on Peacekeeping