The world's oldest man, 113-year-old World War I veteran Henry Allingham, died Saturday after spending his final years reminding Britain about the 9 million soldiers killed during the conflict.

Allingham was the last surviving original member of the Royal Air Force, which was formed in 1918. He made it a personal crusade to talk about a conflict that wiped out much of a generation. Though nearly blind, he would take the outstretched hands of visitors in both of his, gaze into the eyes of children, veterans and journalists and deliver a message he wanted them all to remember.

"I want everyone to know," he told The Associated Press during an interview in November. "They died for us."

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