The result of McClellan's command after the Battle of Antietam was that he was removed from command.

Despite the strategic significance of the battle, where he halted Lee's invasion of the North, McClellan's cautious approach and hesitance to pursue the retreating Confederate forces led to frustration among political leaders and military superiors. President Abraham Lincoln and others felt that he missed a crucial opportunity for a decisive victory. As a result, McClellan was relieved of his command in November 1862, and his leadership was increasingly scrutinized, leading to a shift in Union military strategy.