International Atomic Energy Agency (IAEA) Director General Yukiya Amano, of Japan, addresses the 2015 Nuclear Nonproliferation Treaty (NPT) review conference, in the United Nations General Assembly, Monday, April 27, 2015. (AP Photo/Richard Drew)
Suriname's President Desire Delano Bouterse speaks at the 66th session of the United Nations General Assembly at U.N. headquarters on Thursday, Sept. 22, 2011. (AP Photo/Andrew Burton)
Benjamin Netanyahu, Prime Minister of Israel, speaks during the 69th session of the United Nations General Assembly at U.N. headquarters, Monday, Sept. 29, 2014. (AP Photo/Seth Wenig)
During his speech at the annual United Nations General Assembly, President Obama urged unity in addressing global crises, including the Islamic State, Ukraine and the Ebola outbreak in West Africa. (Associated Press)
LED IN: United States President Barack Obama, speaks during the 69th session of the United Nations General Assembly at U.N. headquarters, Wednesday, Sept. 24, 2014. (AP Photo/Seth Wenig) (Associated Press)
United States President Barack Obama, speaks during the 69th session of the United Nations General Assembly at U.N. headquarters, Wednesday, Sept. 24, 2014. (AP Photo/Seth Wenig)