(Gettysburg) -- The Pickett's Charge commemoration will go on rain or shine this afternoon at Gettysburg National Military Park, 150 years to the day after the failed assault by 12,000 Confederate soldiers on Union lines ended the Civil War's pivotal battle.
National Park Service officials say only the threat of lightning will call off the march across the field roughly three-quarter of a mile in length. The forecast called for morning showers today followed by scattered thunderstorms in the afternoon.
Thousands of people are expected to take part. The grounds are open year-round, and the Park Service holds a smaller Pickett's Charge program each year.
But, a Park Service spokeswoman says a program involving nine groups marching, matching the number Confederate brigades in the attack, has never been done.
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