Who gained victory in the Battle of Antietam the south the north no one claimed the victory or both sides claimed victory?

The Battle of Antietam, fought on September 17, 1862, is considered a strategic victory for the North, as it halted the Confederate invasion of the North and provided President Abraham Lincoln the opportunity to issue the Emancipation Proclamation. However, both sides suffered heavy casualties, and the Confederates withdrew, leading some to argue that neither side could claim a definitive victory. Ultimately, the North's ability to maintain its positions and force the Confederate retreat is why it is often regarded as a Union victory.