Ft. Sumpter and Bunker hill

Confederate troops surrounded Ft. Sumter and demanded to surrender.  After Union Commander Anderson refused, Confederates opended fire on the fort.  The Union eventually surrendered.  Although there were no casualities, it was signifigant because it started the Civil War.  There were 80 Union soldiers and 500 Confederate soldiers.

Image: http://en.wikipedia.org/wiki/Battle_of_Fort_Sumter