French ans U.S. flags are set on the limousine of U.S. President Donald Trump at the Elysee Palace, in Paris, France, November 11, 2018.

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U.S. President Donald Trump arrives for a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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U.S. President Donald Trump waves as he arrives for a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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U.S. President Donald Trump arrives for a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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U.S. President Donald Trump waves as he arrives for a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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U.S. President Donald Trump arrives for a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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Russian President Vladimir Putin leaves after a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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Russian President Vladimir Putin leaves after a lunch at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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In this handout photo distributed by Ukrainian President's press office, U.S. President Donald Trump arrives at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018. Editorial use only, no archive, no commercial use.

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In this handout photo distributed by Ukrainian President's press office, French President Emmanuel Macron and his wife Brigitte welcome Ukrainian President Petro Poroshenko and his wife Marina at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018. Editorial use only, no archive, no commercial use.

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In this handout photo distributed by Ukrainian President's press office, French President Emmanuel Macron and his wife Brigitte welcome Ukrainian President Petro Poroshenko and his wife Marina at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018. Editorial use only, no archive, no commercial use.

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In this handout photo distributed by Ukrainian President's press office, French President Emmanuel Macron and his wife Brigitte wait for guests to arrive at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018. Editorial use only, no archive, no commercial use.

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In this handout photo distributed by Ukrainian President's press office, French President Emmanuel Macron and his wife Brigitte wait for guests to arrive at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018. Editorial use only, no archive, no commercial use.

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French President Emmanuel Macron, centre, his wife Brigitte and international leaders leave the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, left, and his wife Brigitte welcome Prime Minister of Israel Benjamin Netanyahu and his wife Sara at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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International leaders leave the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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International leaders leave the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, centre, his wife Brigitte and German Chancellor Angela Merkel, left, leave the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, centre, and his wife Brigitte welcome German Chancellor Angela Merkel at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, left, welcomes German Chancellor Angela Merkel at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, left, and his wife Brigitte welcome German Chancellor Angela Merkel, centre, at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, left, and his wife Brigitte welcome German Chancellor Angela Merkel, centre, at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, left, and his wife Brigitte welcome Spain's King Felipe VI at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron and his wife Brigitte wait for guests to arrive at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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French President Emmanuel Macron, left, and his wife Brigitte welcome Canadian Prime Minister Justin Trudeau, centre, at the Elysee Palace as part of the commemoration ceremony for Armistice Day, 100th anniversary of the end of the First World War, in Paris, France, November 11, 2018.

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