Vladimir Putin walks with his delegation following a bilateral meeting with Barack Obama during the 70th session General Debate of the United Nations General Assembly at United Nations headquarters in New York City, on 28 Sept.2015.
Timothy Clary—AFP/Getty Images
Xi Jinping, President of China, speaks at the United Nations Sustainable Development Summit during the United Nations General Assembly in New York on Sept. 26, 2015.
Pope Francis addresses the United Nations General Assembly at the United Nations General Assembly Hall on September 25, 2015 in New York City.
Thomas Koehler—Photothek via Getty Images
Flag of the United Nations at the headquarters of the United Nations in New York City on Sept. 24, 2014.
Vice President Joe Biden talks with United Nations Ambassador Samantha Power as they attend a meeting between President Barack Obama and United Nations Secretary-General Ban Ki-moon in the Oval Office at the White House in Washington on Aug. 4, 2015.
Emma Watson attends the launch of the HeForShe Campaign at the United Nations on September 20, 2014 in New York City. (Steve Sands/WireImage)
ALBERTO PIZZOLI—AFP/Getty Images
United Nations Secretary General, Ban Ki-moon waves after a press conference following his speech during the "Protecting the planet, making it worthy of humanity" conference, organized by the Pontifical Academy of Science at the Vatican on April 28, 2015. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)
MAHMOUD ZAYYAT—AFP/Getty Images
A Lebanese young girl is assisted by an Italian peacekeeper to wear a helmet in front of a painting on a wall of the United Nations Interim Force in Lebanon (UNIFIL) headquarters during the International Day of Peace in the southern Lebanese town of Naqura on September 20, 2013. The United Nations's International Day of Peace is celebrated on September 21 each year to recognize the efforts of those who have worked hard to end conflict and promote peace. AFP PHOTO MAHMOUD ZAYYAT (Photo credit should read MAHMOUD ZAYYAT/AFP/Getty Images)
Chip Somodevilla—Getty Images
KIGALI, RWANDA - APRIL 11: Thousands of people participating in a memorial march pause to pray while on their way to a genocide commemoration ceremony at the Nyanza-Kicukiro, 20 years after 2,000 people were killed by the extremist government and Interahamwe militia after being abandoned by United Nations troops during the 1994 genocide April 11, 2014 in Kigali, Rwanda. The forced march and slaughter of Tutsis that took refuge with UNAMIR troops from Belgium at the nearby technical college is seen by Rwandans as an example of their abandonment by the international community. It has been 20 years since an extremist government began 100 days of terror in which more than 800,000 ethnic Tutsis and moderate Hutus were killed. (Photo by Chip Somodevilla/Getty Images)
Jason Szenes / EPA
The United Nations General Assembly during the election of five non-permanent members of the Security Council during the 68th session of the United Nations General Assembly at the United Nations headquarters in New York City, on Oct. 17, 2013.
Shannon Stapleton / Reuters
U.S. Ambassador to the United Nations Samantha Power speaks after United Nations Secretary-General Ban Ki-moon addressed the media after briefing the Security Council on the U.N. chemical weapons report on the use of chemical weapons by the Syrian Arabic Republic at the United Nations in New York September 16, 2013
Iranian President Hassan Rouhani walks through the hallway during the 68th session of the General Assembly at United Nations headquarters, Thursday, Sept. 26, 2013. (AP Photo/Seth Wenig)
Photo by Spencer Platt/Getty Images
US Ambassador to the United Nations Susan Rice speaks to the media following Security Council consolations over the situation in North Korea on April 13 in New York City. Yesterday, Rice withdrew her name from consideration to succeed Hilary Clinton as Secretary of State.
A Palestinian protester holds a placard in front of Israeli soldiers during a demonstration in the West Bank village of al-Masara near Bethlehem, marking the recognition of a sovereign Palestinian state by the United Nations. Friday Nov. 30, 2012. The United Nations General Assembly on 29 November voted 138-9 with 41 countries abstaining to upgrade the Palestinian status at the world organization to a non-member state.(AP Photo/Nasser Shiyoukhi)
AP / AP
Brazil's President Dilma Rousseff waits to be introduced to address the 68th session of the United Nations General Assembly, Tuesday, Sept. 24, 2013 in New York. Rousseff accused the U.S. of violating Brazil's sovereignty with what she called a "grave violation of human rights and of civil liberties" regarding the U.S. National Security Agency surveillance program that has swept up data from telephone calls and emails that have passed through Brazil, including her own. (AP Photo/Richard Drew)
Felipe Dana / AP
An activist burns a Brazilian map as he protests during the United Nations Conference on Sustainable Development, also known as Rio+20, in Rio de Janeiro on Monday June 18, 2012. Activists protested against the regression of Brazil's environmental policies during President Rousseff's government, including the Belo Monte Hydroelectric power plant construction, and the new Forest Code.
President Barack Obama speaks during the general debate of the 69th session of the United Nations General Assembly at the United Nations headquarters in New York on Sept. 24, 2014.
Don Emmert—AFP/Getty Images
The President of Iran Hassan Rouhani waits to address the 69th session of the United Nations General Assembly September 25, 2014 at the United Nations in New York.
Andrew Gombert / EPA
Secretary of State John Kerry shakes hands with Miguel de Serpa Soares of Portugal as Under-Secretary-General for Legal Affairs and United Nations Legal Counsel after signing the U.N. Arms Trade Treaty during the 68th Session of the United Nations General Assembly United Nations headquarters in New York City, Sept. 25, 2013.
Patti Mcconville—Getty Images
United Nations building
(l. to r.): Don Emmert / AFP / Getty; AP
United Nations Secretary General Ban Ki-moon (left) speaks at the United Nations during a High Level event on Climate Change.
Brendan McDermid / Reuters
U.S. Secretary of State John Kerry speaks during a meeting with United Nations Secretary General Ban Ki-moon at the United Nations Headquarters in New York, July 25, 2013.
Denis Balibouse / Reuters
A United Nations Human Rights staff stands in front of a drawing illustrating North Korean labour camp no 18 in Geneva Feb. 17, 2014.
AFP/Getty Images / AFP/Getty Images
An United Nations World Food Programme worker is welcomed by a rebel fighter on February 8, 2014 on the second day of a humanitarian mission in a besieged district of the central city of Homs.
Eric Thayer / Reuters
A United Nations flag is seen in a boardroom in the Secretariat building during the U.N. General Assembly at U.N. Headquarters in New York September 25, 2013.
Charles Dharapak / AP
US United Nations Ambassador Samantha Power speaks about Syria, Friday, Sept. 6, 2013, at the Center for American Progress in Washington.
Julie Jacobson / AP
Iranian president Mahmoud Ahmadinejad addresses the 63rd session of the United Nations General Assembly Tuesday, Sept. 23 2008 at the United Nations.
Ueslei Marcelino / Reuters
United Nations High Commissioner for Refugees Antonio Guterres arrives to meet Brazil's Foreign Minister Antonio Patriota at the Itamaraty palace in Brasilia August 2, 2011
TIMOTHY A. CLARY / AFP / Getty Images
French President Francois Hollande is seen on a monitor as he speaks during the 67th session of the United Nations General Assembly at the United Nations in New York on Sept. 25, 2012.
ALESSANDRO DI MEO / EPA
United Nations Secretary General, Ban Ki-moon arrives for the opening of the three-day World Summit on food security in Rome, Italy.
Pascal Guyot / AFP / Getty
United Nations Mission in Democratic Republic of Congo.
Saeed Khan / AFP
United Nations climate change chief Yvo de Boer
Pornchai Kittiwongsakul / AFP / Getty Images
United Nations envoy Ibrahim Gambari answers questions during a press conference with Thai Foreign Minister Nitya Pibulsonggram in Bangkok, Oct. 15, 2007
Lionel Healing / AFP / Getty
A United Nations vehicle drives past a line of refugees on a road in Kibumba, near Goma, Eastern Congo.
United Nations Secretary-general Kofi Annan addresses human rights groups
United Nations investigators search for clues to the explosion in Pristina
Fadi Al-Assaad / Reuters
Qatar's Deputy Prime Minister and 18th Conference of the Parties President Abdullah bin Hamad Al-Attiyah and Christiana Figueres, executive secretary of the United Nations Framework Convention on Climate Change, attend the opening session of the United Nations Climate Change Conference in Doha Nov. 26, 2012.
MILOS BICANSKI/GETTY IMAGES
The United Nations discussed its role in reconstructing post-war Iraq
SPENCER PLATT/GETTY IMAGES
Chief United Nations weapons inspector Hans Blix
The United Nations Security Council at the U.N. headquarters in New York
Spencer Platt—Getty Images
Mahmoud Abbas pauses moments before the Palestinian flag is raised for the first time at the United Nations headquarters on Sept. 30, 2015 in New York City.
President Barack Obama attends the General Assembly at the United Nations in New York City on Sept. 27, 2015.
Vladimir Putin and Barack Obama share a toast during the luncheon at the United Nations General Assembly on Sept. 28, 2015 in New York City.
Dominick Reuter—AFP/Getty Images
International flags fly in front of the United Nations headquarters on Sept. 24, 2015, before the start of the 70th General Assembly meeting.
Spencer Platt—Getty Images
Venezuelan President Nicolas Maduro at the United Nations headquarters on July 28, 2015 in New York City.
Hillary Rodham Clinton speaks to reporters at United Nations headquarters, March 10, 2015.
Andrew Burton—Getty Images
U.S. President Barack Obama speaks at the United Nations Climate Summit on September 23, 2014 in New York City.
India's Prime Minister Narendra Modi addresses the 69th United Nations General Assembly at the U.N. headquarters in New York on Sept. 27, 2014.
Steve Sands—WireImage/Getty Images
Emma Watson attends the launch of the HeForShe Campaign at the United Nations on September 20, 2014 in New York City.
Ben Curtis / AP
Displaced people walk inside a United Nations compound which has become home to thousands of people displaced by the recent fighting, in Juba, South Sudan, Dec. 27, 2013.
Chip East / Reuters
Members enter into the United Nations General Assembly before a meeting at UN Headquarters in New York, November 29, 2012.
BAS CZERWINSKI / AFP / Getty Images
Secretary General of the United Nations Ban Ki-moon visits the Peace Palace in The Hague, The Netherlands, on Aug. 2013, on the day of the celebration of the building's 100th anniversary.
U.S. Ambassador to the United Nations Susan Rice
Ben Curtis / AP
A displaced boy carries cardboard boxes inside a United Nations compound which has become home to thousands of people displaced by the recent fighting, in Juba, South Sudan, Dec. 27, 2013.
Spencer Platt / Getty Images
The Brazilian president Dilma Rousseff speaks at the United Nations General Assembly on Sept. 24, 2013 in New York City
Leonard McCombe—Time & Life Pictures/Getty Images
American ambassador to the United Nations and future president George Bush with his family, including Barbara Bush, 1971.
Andrew Burton / Getty Images
U.S. President Barack Obama speaks at the 68th United Nations General Assembly on Sept. 24, 2013 in New York City.
Stan Honda/ AFP / Getty Images
Cristina Fernández speaks during the 68th Session of the United Nations General Assembly
Goran Tomasevic / Reuters
An internally displaced boy walks next to barbed wire inside a United Nations Missions in Sudan (UNMIS) compound in Juba, on Dec. 19, 2013.
A report released by the United Nations Environment Programme (UNEP) indicates that the world remains on an unsustainable track.
Mike Segar / Reuters
Brazil's President Dilma Rousseff waits to address the 68th United Nations General Assembly at U.N. headquarters in New York, Sept. 24, 2013.
Raphael Satter / AP
Halldor Thorgeirsson, right, a senior director with the United Nations Framework Convention on Climate Change, and researcher Brian Hoskins take questions during a press briefing at London's Imperial College on Tuesday, Sept. 17, 2013
This June 18, 2013 photo released by the United Nations High Commissioner for Refugees (UNHCR) shows special envoy Angelina Jolie taking notes as she speaks with Syrian refugees in a Jordanian military camp based near the Syria-Jordan border.
Michael Nagle / Getty Images
Egyptian President Mohamed Morsy arrives at the United Nations during the UN's General Assembly in New York City, Sept. 25, 2012.
United Nations Foundation, Gary He / ASSOCIATED PRESS
In this Sept. 22, 2011 file photo released by the United Nations Foundation, Ronan Farrow, then Special Adviser to the Secretary of State for Global Youth Issues, speaks during the Social Good Summit in New York.
Adam Hunger / Reuters
Ali Zeidan, Prime Minister of Libya, addresses the 68th United Nations General Assembly at the UN headquarters in New York, September 25, 2013.
Andrew Gombert / AP
Israeli Prime Minister Benjamin Netanyahu addresses the 68th Session of the United Nations General Assembly
John Minchillo / AP
Iranian President Mahmoud Ahmadinejad addresses the 67th United Nations General Assembly, at U.N. headquarters, Wednesday, Sept. 26, 2012.
The United Nations flag flutters atop the UN headquarters in Baghdad
Paul Banks / AFP / Getty Images
A handout picture released by the United Nations Mission in Sudan (UNMIS) on June 10 2011, shows residents of Kadugli gathered to collect water outside UNMIS sector HQ after fleeing fighting.
The United Nations headquarters in New York
Spencer Platt / Getty Images
Mexican President Felipe Calderon, addresses world leaders at the United Nations General Assembly on September 26, 2012 in New York City.
UNSMIS / AFP / Getty Images
An image grab taken from a video released by the United Nations Supervision Mission in Syria (UNSMIS) shows observers inspecting a power transfer station on June 9, 2012, which was targeted by an explosion in Qabun, a district of Damascus, where six buses were burnt down.
Tina Fineberg / AP
A rally outside the United Nations building in support of Taiwan's U.N. membership bid, New York City, Sept. 15, 2007.
Ghanaian peacekeepers with the United Nations Interim Forces in Lebanon (UNIFIL) patrol near the southern Lebanese village of Ain Ebel.
Chip East / Reuters
Turkish Prime Minister Tayyip Erdogan addresses the 66th United Nations General Assembly at U.N. headquarters, in New York, September 22, 2011.
Mario Tama / Getty Images
President Barack Obama addresses the opening of the United Nations General Assembly on September 21, 2011 in New York.
Hans Blix, United Nations weapons inspector for Iraq
RIZA OZEL / AA / ABACAUSA
French soldiers of the United Nations (UNIFIL) provide humanitarian aid to the border Maronite Christian village of Dibil on Saturday
Stan Honda / AFP / Getty
Pope Benedict XVI addresses the United Nations.
Bob Strong / Reuters
President Obama addresses the session of the United Nations Climate Change Conference in Copenhagen
Henning Bagger / Scanpix / Reuters
Secretary of State Clinton addresses the media during the United Nations Climate Change Conference 2009 in Copenhagen.
Athletes help launch of the United Nations' "Tobacco Free Sports" campaign
Nicholas Kamm / AFP / Getty Images
Iranian President Mahmoud Ahmadinejad greets reporters at United Nations headquarters in New York, Sept. 25, 2007
SPENCER PLATT / GETTY
U.S. President George W. Bush addresses the United Nations General Assembly September 19, 2006, in New York City.
Ramzi Haidar / AFP / Getty Images
Iraqi refugees wait to be processed at the United Nations High Commissioner for Refugees (UNHCR) in Syria.
A red AIDS ribbon lights up the United Nations Secretariat Building in New York
Stephen Chernin / AP
Britain's Prime Minister Gordon Brown speaks during a United Nations Security Council meeting on maintaining peace and security in Africa.
A Somali refugee girl waits to be registered by the United Nations High Commission of Refugees at Dagahaley camp in Dadaab in Kenya's northeastern province
Khaled Al-Hariri / Reuters / Corbis
An Iraqi refugee waits to receive food rations at a United Nations center in Douma, Syria.
Ed Betz / AP
U.S. President Bush addresses the 62nd session of the United Nations General Assembly at U.N. headquarters, September 25, 2007.
MARCO DI LAURO / GETTY
Lebanese wait to be evacuated by personnel from the United Nations Interim Force in Lebanon
Abbas Momani—AFP/Getty Images
Palestinians wave their flags as they watch a live-screening of president Mahmud Abbas' speech followed by the raising of the Palestinian flag at the United Nations headquarters in New York City, on Sept. 30, 2015 in the city of Ramallah.
President Barack Obama extends his hand to Russian President Vladimir Putin during their meeting at the United Nations General Assembly in New York on Sept. 28, 2015.
STF / AFP/Getty Images
British Prime Minister Clement Attlee delivers a speech during the opening session of the first general assembly of the United nations on Jan. 10, 1946, in London
U.S. Secretary of State John Kerry (L) meets with Iranian Foreign Minister Mohammad Javad Zarif at the United Nations April 27, 2015, in New York City.
Harold Cunningham—Getty Images
Under-Secretary-General and Executive Director of UN Women Phumzile Mlambo-Ngcuka speaks at the United Nations Office in Geneva on Nov. 6, 2014 in Geneva.
Former U.S. Secretary of State Hillary Clinton speaks during a news conference at the United Nations in New York, March 10, 2015.
Former U.S. Secretary of State Hillary Clinton speaks during a press conference at the United Nations in New York March 10, 2015.
Yana Paskova—Getty Images
Former United States Secretary of State Hillary Clinton speaks to the media after keynoting a Women's Empowerment Event at the United Nations on March 10, 2015 in New York City.