The family of an Irish World War I veteran received the soldier's Purple Heart award 100 years after his death.

According to the Irish Times, Pvt. Michael Walsh was killed in France on October 24, 1918, while serving with the American Expeditionary Force.

The outlet said Walsh was died during the Meuse Argonne offensive, "the biggest battle ever involving American soldiers."

Walsh's family was presented with the posthumous award by Purple Heart Reunited, a group that returns lost or stolen medals to veterans' families.

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According to Purple Hearts Reunited, Walsh's ceremony was held in Dublin, Ireland's Glasnevin Cemetery.

The organization said that 30 members of Walsh's family "of all ages" attended the ceremony, which "mixed with family tradition and Irish culture."

"[Walsh's] family never found out where he was in France," his great niece Finola O’Mahony said. "They never knew he died. It’s been like a detective puzzle. Now we know where and how he died."

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