The number of flags was reduced. A federal regiment carried 2 flags, one was the American flag and the other was a regimental flag. A Confederate regiment usually carried a battle flag. A Union infantry regiment carried the national color and a state or regimental color. The national color included the regimental name. The state or regimental color, usually dark blue, had the state crest painted at its center. Other branches of the Service carried colors, generally of a smaller size. Union Army Major General Joseph Hooker introduced a system of flags and badges to identify different commands.