Reenactors demonstrate a cavalry battle during ongoing activities commemorating the 150th anniversary of the Battle of Gettysburg, Saturday, June 29, 2013, at Bushey Farm in Gettysburg, Pa. Union ... more 
Reenactors demonstrate a cavalry battle during ongoing activities commemorating the 150th anniversary of the Battle of Gettysburg, Saturday, June 29, 2013, at Bushey Farm in Gettysburg, Pa. Union forces turned away a Confederate advance in the pivotal battle of the Civil War fought July 1-3, 1863, which was also the war’s bloodiest conflict with more than 51,000 casualties. (AP Photo/Matt Rourke) less 
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Associated Press | Photo By Matt Rourke
Sat, Jun 29, 2013 2:06 PM EDT