The 1st United States Sharpshooters were an infantry regiment that served in the Union Army during the American Civil War. During battle, the mission of the sharpshooter was to kill enemy targets of importance (i.e., officers and NCOs) at long range. The first regiment of volunteers began service in late November 1861. During their service, they fought in every Eastern battle up until autumn of 1864. During their tour, the Sharpshooters were noted for efficient service in the battles of Yorktown, Gettysburg, Vicksburg, Chattanooga, Atlanta, Spotsylvania and Petersburg.