The Battle of Cold Harbor fought in June 1864, is notable for the staggering number of Union casualties incurred in a brief period.

In just a matter of minutes, Union forces faced devastating losses due to their frontal assault against well-entrenched Confederate positions. This battle exemplified the brutal nature of trench warfare and the challenges faced by Union General Ulysses S. Grant’s tactics. The high casualties demoralized Union troops and highlighted the increasing toll of the Civil War, marking it as one of the war's bloodiest engagements.