To celebrate the 150th anniversary of Gettysburg, the Blue Gray Alliance brought in thousands of re-enactors to play out the three-day battle.

Confederate soldiers ready their cannon for battle.

Gettysburg's ladies look on as soldiers descend upon their town.

Confederate calvary men head off toward Devils' Den.

Confederate cannons support the infantry during the Battle of the Wheatfield.

Confederate soldiers cross a creek on the way to the Union line.

The crowd watches the re-enactment.

Confederates fire all at once at the Union soliders.

The Wheatfield and Peach Orchard battles took place on the second day of Gettysburg, July 2, 1863.

Nearly 4,000 men died or were wounded during the Battle of the Wheatfield.

On the third day of the battle, Confederate soldiers mass together for Pickett's Charge.

Confederate soliders retreat back after Pickett's Charge.

This guy next to us was serious about his telescope viewing.

Cole looks across Gettysburg National Military Park from Seminary Ridge.

Robert E. Lee came out to this point to give the word to fall back. This spot is where Pickett's Charge started.

The sun shines through the clouds onto Eisenhower National Historic Site across Warfield Ridge.

Cole stands at the top of Little Round Top.

From the Pennsylvania Memorial, you can see the line that the Union held on Cemetery Ridge.

On the last day, July 3, Confederate forces broke through momentarily at the Angle, but were pushed back by Union forces. This place is the High Water Mark. In total, 23,000 Union soldiers and 28,000 Confederate soldiers were killed, wounded or missing during the three-day battle.