2011 is the 150th anniversary of the start of the American Civil War - and there will be a succession of commemorations of the great battles, and more localised ones.
Further details can be found via the following links
Manassas (Bull Run)
Today a House Resolution is to be considered under the "Suspensions" procedure in the House of Representatives - but the subject isn't a battle a mere century and a half ago. Instead H.Res. 1704 seeks to commemorate the Battle of Marathon - 2500 years ago! (490 BC).
An earlier Washminster post deal with one of the great English Civil War battles - Naseby.