Unknown Soldier, Tomb of the. The Columbia Encyclopedia, Sixth Edition. Columbia Encyclopedia World Factbook American Heritage Coll. Remains of an unknown soldier from the Vietnam War were interred here in 1984, but later investigations revealed the soldier's identity, and they were removed. The best known of other such memorials are those in Westminster Abbey in London and under the Arc de Triomphe in Paris.
Similar tombs are in Baghdad, Russia, and elsewhere.
The Columbia Encyclopedia, Sixth Edition.