BATTLES OF CHARLEROI AND MONS The series of encounters between the Allied left and German right wings in southern Belgium during the third week in Aug. 1914 may be sub-divided into the battle of Charleroi, in which the V. French Army was attacked and defeated by the German II. and III. Armies, and the battle of Mons, subsequent to which the British Expeditionary Force retired southwards before the Ger man I. Army.