During the Battle of Antietam, General George McClellan employed a strategy of cautious advance.

Known for his methodical and hesitant approach, McClellan prioritized careful planning and reconnaissance over aggressive tactics. This cautiousness allowed him to gather intelligence on Confederate positions but also resulted in missed opportunities for a decisive victory against Robert E. Lee's forces. Although McClellan had superior numbers, his reluctance to engage fully contributed to a bloody stalemate. The battle ultimately ended without a clear victor, reflecting the challenges of McClellan's leadership style and the complexities of Civil War combat.