The Commander-in-Chief of the Forces, or just the Commander-in-Chief (C-in-C), was the professional head of the English Army from 1660 to 1707 (the English Army, founded in 1660, was succeeded in 1707 by the new British Army, incorporating existing Scottish regiments) and of the British Army from 1707 until 1904 (the office was replaced in 1904 by the Chief of the General Staff.)