One of President Ronald Reagan's greatest speeches, Morning Edition co-host Renee Montagne notes, was on the beaches of Normandy when he marked the 40th anniversary of the D-Day allied invasion of occupied France.

On today's show, Renee and historian Doris Kearns Goodwin discussed the ways that Reagan and other presidents since have marked the anniversary:

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Bob Daugherty/AP

Nancy and Ronald Reagan at the American Cemetery on Omaha Beach, Normandy, June 6, 1984.

President Barack Obama will be in Normandy tomorrow to honor the memories of those who fought there on the 65th anniversary.