Canada's Foreign Minister Stephane Dion (L), shakes hands with Cambodian Prime Minister Hun Sen before a meeting at the Prime Minister's office in Phnom Penh, September 2, 2016. REUTERS/Samrang Pring 

Canada's Foreign Minister Stephane Dion (L), speaks to Cambodian Prime Minister Hun Sen (R), during a meeting at the Prime Minister's office in Phnom Penh, September 2, 2016. REUTERS/Samrang Pring 

Canada's Foreign Minister Stephane Dion (L), arrives for a meeting with Cambodian Prime Minister Hun Sen at the Prime Minister's office in Phnom Penh, September 2, 2016. REUTERS/Samrang Pring 

Canadian Foreign Minister Stephane Dion (L) gestures next to Sri Lankan Prime Minister Ranil Wickremesinghe during their meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Foreign Minister Stephane Dion (L) speaks to media next to his Sri Lankan counterpart Mangala Samaraweera during their bilateral meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Foreign Minister Stephane Dion (L) gestures next to his Sri Lankan counterpart Mangala Samaraweera during their bilateral meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Foreign Minister Stephane Dion (L) shakes hand with his Sri Lankan counterpart Mangala Samaraweera during their bilateral meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Foreign Minister Stephane Dion (L) shakes hand with his Sri Lankan counterpart Mangala Samaraweera during their bilateral meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Minister of Foreign Affairs Stephane Dion (L) talks with Sri Lanka's Prime Minister Ranil Wickremesinghe during their meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Minister of Foreign Affairs Stephane Dion (L) looks on as Sri Lanka's Prime Minister Ranil Wickremesinghe gestures during their meeting, in Colombo, Sri Lanka, July 28, 2016. REUTERS/Dinuka Liyanawatte 

Canada's Minister of Foreign Affairs Stephane Dion arrives at a meeting at the sidelines of the ASEAN foreign ministers meeting in Vientiane, Laos July 25, 2016. REUTERS/Jorge Silva 

Canada's Minister of Foreign Affairs Stephane Dion arrives at a meeting at the sidelines of the ASEAN foreign ministers meeting in Vientiane, Laos July 25, 2016. REUTERS/Jorge Silva 

Foreign Ministers of Canada Stephane Dion speaks during a Pledging Conference in Support of Iraq, co-hosted by the United States, Canada, Germany, Japan, Kuwait, and The Netherlands at the State Department in Washington, U.S., July 20, 2016. REUTERS/Joshua Roberts 

Foreign Ministers of Canada Stephane Dion speaks during a Pledging Conference in Support of Iraq, co-hosted by the United States, Canada, Germany, Japan, Kuwait, and The Netherlands at the State Department in Washington, U.S., July 20, 2016. REUTERS/Joshua Roberts 

Canada's Minister of Foreign Affairs Stephane Dion listens during a news conference in Riga, Latvia, July 11, 2016. REUTERS/Ints Kalnins 

Canada's Minister of Foreign Affairs Stephane Dion speaks during a news conference in Riga, Latvia, July 11, 2016. REUTERS/Ints Kalnins 

Canada's Minister of Foreign Affairs Stephane Dion speaks during a news conference in Riga, Latvia, July 11, 2016. REUTERS/Ints Kalnins 

Canada's Minister of Foreign Affairs Stephane Dion listens during a news conference in Riga, Latvia, July 11, 2016. REUTERS/Ints Kalnins 

Canada's Minister of Foreign Affairs Stephane Dion smiles as he speaks during a news conference in Riga, Latvia, July 11, 2016. REUTERS/Ints Kalnins 

Canada's Foreign Minister Stephane Dion shakes hands with his Chinese counterpart Wang Yi at the start of a meeting on Parliament Hill in Ottawa, Ontario, Canada, June 1, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion speaks during Question Period in the House of Commons on Parliament Hill in Ottawa, Ontario, Canada, May 31, 2016. REUTERS/Chris Wattie 

G7 foreign ministers E.U. High Representative for Foreign Affairs Federica Mogherini (from L, in decorative necklaces), Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond (obscured), U.S. Secretary of State John Kerry, Japan's Foreign Minister Fumio Kishida (obscured), Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault walk together after placing wreaths at the cenotaph at Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

G7 foreign ministers (L to R) E.U. High Representative for Foreign Affairs Federica Mogherini, Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, Japan's Foreign Minister Fumio Kishida, Germany's Foreign Minister Frank-Walter Steinmeier, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault stand together after placing wreaths at the cenotaph at Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

Children give lei necklaces to G7 foreign ministers including Canada's Foreign Minister Stephane Dion (L-R), Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, Japan's Foreign Minister Fumio Kishida, and Germany's Foreign Minister Frank-Walter Steinmeier after they placed wreaths at the cenotaph at Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

G7 foreign ministers (L to R) E.U. High Representative for Foreign Affairs Federica Mogherini, Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, Japan's Foreign Minister Fumio Kishida, Germany's Foreign Minister Frank-Walter Steinmeier, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault walk together after placing wreaths at the cenotaph at Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

Canada's Foreign Minister Stephane Dion (C, waving), Britain's Foreign Minister Philip Hammond (2nd R) and U.S. Secretary of State John Kerry (R) wave to schoolchildren as they and fellow G7 foreign ministers visit the Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (center L) puts his arm around Japan's Foreign Minister Fumio Kishida (center R) after they and fellow G7 foreign ministers laid wreaths at the cenotaph at Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. Also pictured are: E.U. High Representative for Foreign Affairs Federica Mogherini (L-R), Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, Germany's Foreign Minister Frank-Walter Steinmeier, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

U.S. Secretary of State John Kerry (center L) puts his arm around Japan's Foreign Minister Fumio Kishida (center R) after they and fellow G7 foreign ministers laid wreaths at the cenotaph at Hiroshima Peace Memorial Park and Museum in Hiroshima, Japan April 11, 2016. Also pictured are: Canada's Foreign Minister Stephane Dion (L), Britain's Foreign Minister Philip Hammond (2nd L), Germany's Foreign Minister Frank-Walter Steinmeier (2nd R) and Italy's Foreign Minister Paolo Gentiloni (R). REUTERS/Jonathan Ernst 

Canada's Foreign Minister Stephane Dion (clockwise from L), Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, Japan's Foreign Minister Fumio Kishida, Germany's Foreign Minister Frank-Walter Steinmeier, Italy's Foreign Minister Paolo Gentiloni, France's Foreign Minister Jean-Marc Ayrault and E.U. Foreign Affairs Political Director Helga Schmid pause for a photo before a working session, the fourth session of the their G7 foreign ministers meetings in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

Canada's Foreign Minister Stephane Dion (L-R), Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, Japan's Foreign Minister Fumio Kishida, France's Foreign Minister Jean-Marc Ayrault (seated, foreground), Germany's Foreign Minister Frank-Walter Steinmeier (standing, background) and Italy's Foreign Minister Paolo Gentiloni take their seats before a working session, the fourth session of the their G7 foreign ministers meetings in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (R) and his fellow G7 foreign ministers including Canada's Foreign Minister Stephane Dion (L) and Britain's Foreign Minister Philip Hammond (2nd L) take their seats for a working session, the fourth session of the their meetings in Hiroshima, Japan April 11, 2016. REUTERS/Jonathan Ernst 

Britain's Foreign Minister Philip Hammond, Japan's Foreign Minister Fumio Kishida, U.S. Secretary of State John Kerry, Italy's Foreign Minister Paolo Gentiloni, France's Foreign Minister Jean-Marc Ayrault and Canada's Foreign Minister Stephane Dion (L-R) listen to a guide at the Itsukushima Shrine as they take a cultural break from their G7 Foreign Minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (2nd L) takes his seat with fellow G7 foreign ministers, including Britain's Foreign Minister Philip Hammond (L) and Canada's Foreign Minister Stephane Dion (4th L), for a traditional dance performance at the Itsukushima Shrine as they take a cultural break from their G7 Foreign Minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (3rd L) talks to Japan's Foreign Minister Fumio Kishida (2nd L) during a ceremonial dance at the Itsukushima Shrine, as they and Britain's Foreign Minister Philip Hammond (L), Italy's Foreign Minister Paolo Gentiloni (4th L), France's Foreign Minister Jean-Marc Ayrault (5th L) and Canada's Foreign Minister Stephane Dion (6th L) take a cultural break from their G7 foreign minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

E.U. High Representative for Foreign Affairs Federica Mogherini, Britain's Foreign Minister Philip Hammond, Japan's Foreign Minister Fumio Kishida, U.S. Secretary of State John Kerry, Italy's Foreign Minister Paolo Gentiloni, France's Foreign Minister Jean-Marc Ayrault and Canada's Foreign Minister Stephane Dion (L-R) take their seats for a traditional dance performance at the Itsukushima Shrine as they take a cultural break from their G7 Foreign Minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (2nd L) talks to Japan's Foreign Minister Fumio Kishida (L) during a ceremonial dance at the Itsukushima Shrine, as they and Italy's Foreign Minister Paolo Gentiloni (3rd L), France's Foreign Minister Jean-Marc Ayrault (4th L) and Canada's Foreign Minister Stephane Dion (5th L) take a cultural break from their G7 foreign minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

E.U. High Representative for Foreign Affairs Federica Mogherini, Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, Japan's Foreign Minister Fumio Kishida, U.S. Secretary of State John Kerry, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault (L-R) take a family photo at the Itsukushima Shrine as they take a cultural break from their G7 Foreign Minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (3rd R) is the first to step out of line at the end of a family photo with G7 foreign ministers E.U. High Representative for Foreign Affairs Federica Mogherini, Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, Japan's Foreign Minister Fumio Kishida, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault (L-R) at the Itsukushima Shrine as they take a cultural break from their meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

E.U. High Representative for Foreign Affairs Federica Mogherini, Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, Japan's Foreign Minister Fumio Kishida, U.S. Secretary of State John Kerry, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault (L-R) take a family photo at the Itsukushima Shrine as they take a cultural break from their G7 Foreign Minister meetings in nearby Hiroshima to visit Miyajima Island, Japan, April 10, 2016. REUTERS/Jonathan Ernst 

Italy's Foreign Minister Paolo Gentiloni (C) and Canada's Foreign Minister Stephane Dion (R) arrive for an opening ceremony at the G7 foreign minister meetings in Hiroshima, Japan April 10, 2016. REUTERS/Jonathan Ernst 

E.U. High Representative for Foreign Affairs Federica Mogherini (L-R), Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, France's Foreign Minister Jean-Marc Ayrault, Japan's Foreign Minister Fumio Kishida, Germany's Foreign Ministry Political Director Andreas Michaelis and Italy's Foreign Minister Paolo Gentiloni participate in the first working session of the G7 foreign minister meetings in Hiroshima, Japan April 10, 2016. REUTERS/Jonathan Ernst 

E.U. High Representative for Foreign Affairs Federica Mogherini (clockwise from bottom left), Canada's Foreign Minister Stephane Dion, Britain's Foreign Minister Philip Hammond, U.S. Secretary of State John Kerry, JapanÕs Foreign Minister Fumio Kishida, Germany's Foreign Ministry Political Director Andreas Michaelis, Italy's Foreign Minister Paolo Gentiloni and France's Foreign Minister Jean-Marc Ayrault participate in the first working session of the G7 foreign minister meetings in Hiroshima, Japan April 10, 2016. REUTERS/Jonathan Ernst 

U.S. Secretary of State John Kerry (TOP R) sits with fellow top diplomats including Canada's Foreign Minister Stephane Dion (L) and Britain's Foreign Minister Philip Hammond (3rd L) as they participate in the first working session of the G7 foreign minister meetings in Hiroshima, Japan April 10, 2016. REUTERS/Jonathan Ernst 

Canada's Foreign Minister Stephane Dion speaks at the University of Ottawa in Ottawa, Canada, March 29, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion speaks at the University of Ottawa in Ottawa, Canada, March 29, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion speaks at the University of Ottawa in Ottawa, Canada, March 29, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion listens to a question after delivering a speech at the University of Ottawa in Ottawa, Canada, March 29, 2016. REUTERS/Chris Wattie 

United Nations Secretary General Ban Ki-moon (3rd L) directs Canadian Prime Minster Justin Trudeau (2nd L) to a seat while Canadian Minister of International Development Marie-Claude Bibeau (L) and Canadian Minister of Foreign Affairs Stephane Dion (R) look on during a photo opportunity at United Nations Headquarters in the Manhattan borough of New York, March 16, 2016. REUTERS/Adrees Latif 

Canada's Foreign Minister Stephane Dion (R) and his Japanese counterpart Fumio Kishida leave at the conclusion of a news conference in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Japan's Foreign Minister Fumio Kishida (L) speaks during a news conference with his Canadian counterpart Stephane Dion in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Japan's Foreign Minister Fumio Kishida speaks during a news conference with his Canadian counterpart Stephane Dion (not pictured) in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion (R) speaks during a news conference with his Japanese counterpart Fumio Kishida in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion (L) shakes hands with his Japanese counterpart Fumio Kishida during a photo opportunity in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion (L) shakes hands with his Japanese counterpart Fumio Kishida during a photo opportunity in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion (L) gestures during a photo opportunity with his Japanese counterpart Fumio Kishida in Ottawa, Canada, February 12, 2016. REUTERS/Chris Wattie 

Canada's Prime Minister Justin Trudeau (2nd R) takes part in a news conference with Defence Minister Harjit Sajjan (L), International Development Minister Marie-Claude Bibeau (2nd L) and Foreign Minister Stephane Dion in Ottawa, Canada, February 8, 2016. REUTERS/Chris Wattie 

Canada's Prime Minister Justin Trudeau (2nd R) speaks during a news conference with Defence Minister Harjit Sajjan (L), International Development Minister Marie-Claude Bibeau (2nd L) and Foreign Minister Stephane Dion in Ottawa, Canada, February 8, 2016. REUTERS/Chris Wattie 

Canada's Prime Minister Justin Trudeau (2nd R) listens to Foreign Minister Stephane Dion (R) speak during a news conference in Ottawa, Canada, February 8, 2016. Also pictured are Defence Minister Harjit Sajjan (L) and International Development Minister Marie-Claude Bibeau. REUTERS/Chris Wattie 

Canada's Prime Minister Justin Trudeau (2nd R) speaks during a news conference with Defence Minister Harjit Sajjan (L), International Development Minister Marie-Claude Bibeau (2nd L) and Foreign Minister Stephane Dion in Ottawa, Canada, February 8, 2016. REUTERS/Chris Wattie 

Canada's Foreign Minister Stephane Dion speaks during Question Period in the House of Commons on Parliament Hill in Ottawa, Canada, February 4, 2016. REUTERS/Chris Wattie