1 / 15Britain's Queen Elizabeth II talks to the Dean of Westminster Abbey as she leaves the abbey after attending the National Service to mark the Centenary of the Armistice in London, Sunday, November 11, 2018. Remembrance Sunday is held each year to commemorate the service men and women who fought in past military conflicts. 2018 marks the centenary of the armistice and cessation of hostilities in WWI, which ended on the eleventh hour of the eleventh day of the eleventh month. (AP Photo/Alastair Grant)
2 / 15French President Emmanuel Macron, right, meets Canadian Prime Minister Justin Trudeau at the Paris Peace Forum in Paris, Sunday, November 11, 2018. International leaders attended a ceremony in Paris on Sunday at mark the 100th anniversary of the end of World War I. (Thomas Samson, Pool via AP)
3 / 15President Donald Trump stands amongst the headstones during an American Commemoration Ceremony, Sunday November 11, 2018, at Suresnes American Cemetery near Paris. Trump is attending centennial commemorations in Paris this weekend to mark the Armistice that ended World War I. (AP Photo/Jacquelyn Martin)
4 / 15The famous Paris landmark, the Eiffel Tower, looms in the background of the headstones during an American Commemoration Ceremony, Sunday November 11, 2018, at Suresnes American Cemetery near Paris. Trump is attending centennial commemorations in Paris this weekend to mark the Armistice that ended World War I. (AP Photo/Jacquelyn Martin)
5 / 15German Chancellor Angela Merkel and French President Emmanuel Macron hold hands after leaving books at the peace library of the Paris Peace Forum as part of the commemoration ceremony for Armistice Day, in Paris, Sunday, November 11, 2018. International leaders attended a ceremony in Paris on Sunday at mark the 100th anniversary of the end of World War I. (Gonzalo Fuentes, Pool via AP)
6 / 15French President Emmanuel Macron's wife, Brigitte Macron, center left, listens to Canadian Prime Minister Justin Trudeau, center right, as they walk with other world leaders towards the Arc de Triomphe in Paris, France, as part of the commemorations marking the 100th anniversary of the 11 November 1918 armistice, ending World War I, Sunday, November 11, 2018. (Ludovic Marin/Pool Photo via AP)
7 / 15Russian President Vladimir Putin, left, and Canadian Prime Minister Justin Trudeau attend the opening session of the Paris Peace Forum as part of the commemoration ceremony for Armistice Day, in Paris, Sunday, November 11, 2018. International leaders attended a ceremony in Paris on Sunday at mark the 100th anniversary of the end of World War I. (Mikhail Metzel, TASS/Sputnik, Kremlin Pool Photo via AP)
8 / 15Military personnel and veterans attend a Remembrance Sunday service and parade at the Commando Memorial at Spean Bridge, England, Sunday November 11, 2018, during the Centennial of the end of WWI. Events Sunday mark the 100th anniversary of the signing of the Armistice which ended the First World War. (Andrew Milligan/PA via AP)
9 / 15The famous Paris landmark, the Eiffel Tower, looms in the background of the headstones during an American Commemoration Ceremony, Sunday Nov. 11, 2018, at Suresnes American Cemetery near Paris. Trump is attending centennial commemorations in Paris this weekend to mark the Armistice that ended World War I. (AP Photo/Jacquelyn Martin)
10 / 15Queen Elizabeth II and German President Frank-Walter Steinmeier attend a National Service to mark the centenary of the Armistice at Westminster Abbey, London, Sunday, November 11, 2018. (Paul Grover/Pool photo via AP)
11 / 15The wreath of Britain's Prime Minister Theresa May at the grave of George Ellison, the last British soldier to be killed before Armistice in 1918, at the St Symphorien Military Cemetery in Mons, as Belgian Prime Minister Charles Michel looks on, Friday Nov. 9, 2018. (Gareth Fuller/Pool via AP)
12 / 15Archbishop of Canterbury Justin Welby makes an address during a National Service to mark the centenary of the Armistice at Westminster Abbey, London, Archbishop of Canterbury Justin Welby makes an address during a National Service to mark the centenary of the Armistice at Westminster Abbey, London, Sunday November 11, 2018. (Paul Grover/Pool photo via AP)
13 / 15Queen Elizabeth II shakes hands with German President Frank-Walter Steinmeier at a National Service to mark the centenary of the Armistice at Westminster Abbey, London, Sunday November 11, 2018. (Paul Grover/Pool Photo via AP)
14 / 15Britain's Prime Minister Theresa May with her husband Philip leaves Westminster Abbey after attending the National Service to mark the Centenary of the Armistice in London, Sunday, Nov. 11, 2018. Remembrance Sunday is held each year to commemorate the service men and women who fought in past military conflicts. 2018 marks the centenary of the armistice and cessation of hostilities in WWI, which ended on the eleventh hour of the eleventh day of the eleventh month,1918. (AP Photo/Alastair Grant)
15 / 15President of Germany Frank-Walter Steinmeier with his wife Elke Budenbender leave Westminster Abbey after attending the National Service to mark the Centenary of the Armistice in London, Sunday, November 11, 2018. Remembrance Sunday is held each year to commemorate the service men and women who fought in past military conflicts. 2018 marks the centenary of the armistice and cessation of hostilities in WWI, which ended on the eleventh hour of the eleventh day of the eleventh month. (AP Photo/Alastair Grant)
