NEW YORK, NY - SEPTEMBER 28: United Nations Secretary General Ban Ki-moon delivers opening remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this year's 70th annual General Assembly meeting of global leaders. (Photo by John Moore/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Barack Obama addresses the UN General Assembly on September 28, 2015 in New York City. World leaders gathered for the 70th session of the annual meeting. (Photo by John Moore/Getty Images)
President Obama Attends Annual UN General Assembly
NEW YORK, NY - SEPTEMBER 28: (AFP OUT) U.S. President Barack Obama addresses the 70th annual United Nations General Assembly at the UN headquarters September 28, 2015 in New York City. Obama will hold bilateral meetings with Indian Prime Minister Narendra Modi and Russian President Vladimir Putin later in the day. (Photo by Chip Somodevilla/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama delivers remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama delivers remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama delivers remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama delivers remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: President Obama addresses the United Nations General Assembly on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama sits after giving remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama delivers remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Obama shakes hands with United Nations Secretary General Ban Ki-moon after giving remarks at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: 28: U.S. President Barack Obama sits after addressing the UN General Assembly on September 28, 2015 in New York City. World leaders gathered for the 70th session of the annual meeting. (Photo by John Moore/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: U.S. President Barack Obama addresses the UN General Assembly on September 28, 2015 in New York City. World leaders gathered for the 70th session of the annual meeting. (Photo by John Moore/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: Russian President Vladimir Putin sits with the Russian delegation at the United Nations General Assembly at U.N. headquarters on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: Vladimir Putin, President of Russia,
sits with the Russian delegates at the United Nations General Assembly on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: President of Russia Vladimir Putin addresses the United Nations General Assembly on September 28, 2015 in New York City. World leaders gathered for the 70th session of the annual meeting. (Photo by John Moore/Getty Images)
World Leaders Address The UN General Assmebly
NEW YORK, NY - SEPTEMBER 28: President of Russia Vladimir Putin waits to address the United Nations General Assembly on September 28, 2015 in New York City. World leaders gathered for the 70th session of the annual meeting. (Photo by John Moore/Getty Images)
