John Kerry

U.S. Secretary of State John Kerry, center left, speaks with Lithuanian Foreign Minister Linas Linkevicius, center right, during a meeting of the North Atlantic Council in Foreign Ministers Session at NATO headquarters in Brussels on Wednesday, June 25, 2014. The Brussels meeting is the final gathering of high-ranking government officials before the summit of NATO’s leaders scheduled for September in Wales. U.S. Secretary of State John Kerry and his colleagues are expected to fine tune the summit’s agenda on a wide array of topics, from how to redeploy NATO’s forces in response to Russian capabilities and actions to what to do in Afghanistan when NATO’s combat mission in that country comes to an end this December. (AP Photo/Virginia Mayo)

Virginia Mayo/AP

US secretary of state John Kerry, centre left, speaks with Lithuanian foreign minister Linas Linkevicius during a meeting of the North Atlantic Council at Nato headquarters in Brussels on Wednesday Read more

US Secretary of State John Kerry boards

Brendan Smailowski/AFP/Getty Images

US Secretary of State John Kerry boards a cargo plane at Queen Alia International Airport in Amman on Tuesday on his way to Kurdish territories in the north of Iraq for a second day of talks with Iraqi leaders about the increasing insurgent crisis as cities continue to fall to rebel-led groups.

International Support Group for Lebanon meeting...epa04110924 French President Francois Hollande (2nd L) and French Foreign Affairs Minister Laurent Fabius (C) speak with US Secretary of State John Kerry (R) as Lebanese President Michel Sleimane (L) looks on, during a family photo after the International Support Group for Lebanon meeting at the Elysee Palace in Paris, France, 05 March 2014.  EPA/IAN LANGSDON/POOL MAXPPP OUT

Ian Langsdon/EPA

French President Francois Hollande and French Foreign Affairs Minister Laurent Fabius speak with US Secretary of State John Kerry as Lebanese President Michel Sleimane looks on, during a family photo after the International Support Group for Lebanon meeting at the Elysee Palace in Paris, FranceRead more

United States Secretary of State John Kerry looks out at Lake Geneva outside of his meeting room in Switzerland...United States Secretary of State John Kerry looks out at Lake Geneva outside of his meeting room in Montreux January 22, 2014.  Syria's government and its enemies come face to face on Wednesday for the first time as world powers try to set aside their own differences and push for an end to three years of civil war that is unsettling the entire Middle East.     REUTERS/Gary Cameron

Gary Cameron/Reuters

US Secretary of State John Kerry looks out at Lake Geneva outside of his meeting room in Montreux. Syria’s government and its enemies came face to face on Wednesday for the first time as world powers tried to set aside their own differences and push for an end to three years of civil war that is unsettling the entire Middle East. Read more

APEC 2013 summit in Indonesia...epa03900660 US Secretary of State John Kerry, welcomed by Indonesian beauties, gestures while arriving with Russian President Vladimir Putin (L) for a group photo at Asia-Pacific Economic Cooperation (APEC) Summit  in Nusa Dua , Bali, Indonesia, 07 October 2013  EPA/SERGEI CHIRIKOV

Sergei Chirikov/EPA

US secretary of state John Kerry acknowledges the welcome of his Indonesian hosts as he arrives for a group photo at the Asia-Pacific Economic Cooperation summit in Nusa Dua, Bali, Indonesia Read more

US Secretary of State John Kerry, right, and Britain's Foreign Minister William Hague, left, leave after a news conference on Syria at the Foreign and Commonwealth Office in central London.

Susan Walsh/Getty Images

John Kerry, US secretary of state, right, watches Britain’s foreign minister William Hague leave after a press conference on Syria at the foreign and commonwealth office in London.