The 69th New York Infantry Regiment, also known as the "Fighting 69th," was a unit in the Union Army during the American Civil War. Formed in 1849, it was composed mainly of Irish immigrants and became famous for its bravery in battle. The regiment fought in several key battles, including the Battle of Antietam and the Battle of Gettysburg. The 69th was part of the Irish Brigade, which was known for its distinctive green uniforms and strong camaraderie. The regiment's legacy continues to be honored, particularly in New York City, where it is celebrated for its contributions to the war and its role in American history.