Several monuments at Gettysburg National Military Park were vandalized, with 23 monuments marked by petroleum-based substances. The restoration process involves a three-step cleaning method: pressure washing, using a biological compound called D2 to extract the oil, and applying rare earth element powder to absorb any remaining oil. Park staff expressed disappointment over the damage, highlighting the historical significance of the monuments. Visitors and local historians emphasized the importance of preserving these sites, especially given the personal connections many have to the inscriptions on the monuments. Gettysburg, the site of the Civil War’s bloodiest battle, remains a key historical landmark, drawing over 1.6 million visitors annually.
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