British servicemen and artist Paul Cummins (second from right) walk past his art installation "Blood Swept Lands and Seas of Red," made of ceramic poppies, during an Armistice Day ceremony at the Tower of London on Tuesday. Stefan Wermuth/Reuters/Landov hide caption

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Members of the New York State National Guard march in the annual Veterans Day Parade on Fifth Avenue in New York Monday. The parade honored all veterans, with a special salute to women in uniform. Stan Honda/AFP/Getty Images hide caption

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A cross adorned with a poppy was among the ways Harold Percival was remembered Monday. Poppies have been a symbol of remembrance for veterans since the poem In Flanders Fields was written in 1915 by a Canadian military doctor. Nigel Roddis/Getty Images hide caption

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Jim Wolf of Grand Rapids, Mich. The Army veteran was transformed for a video that the maker hopes will convince people to look at the homeless differently. Screen grabs from the RobBlissCreative video hide caption

itoggle caption Screen grabs from the RobBlissCreative video

Marine Corps Capt. Jeff Cliffe, sat to reflect Sunday next to the grave of his grandfather and grandmother at Arlington National Cemetery in Virginia. Lexey Swall/Getty Images hide caption

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