A fading past: How America remembers World War I
6 April 2012 Last updated at 21:39 BST
On 6 April 1917 the United States entered World War I, where ultimately some five millions Americans would serve.
Ninety-five years later the war is now a faded memory in America.
Other wars have come and gone - and their memorials sit on Washington's National Mall: WWII, Korea, and Vietnam.
But World War I is still without a national monument, and the way the war was seen at the time has played a part in how it is remembered now.
Produced by the BBC's David Botti
Additional photos/video: Getty Images, British Pathé, and courtesy National WWI Museum