Complex sentence: Taking his battalion into the wadi from one end, Shuttleworth realised that elements of the Afrika Korps moved into the other end of the wadi, initiating a battle in which the battalion, having appreciated the situation more quickly than the Germans, took 200 prisoners.
Split into simpler sentences: Taking his battalion into the wadi from one end, Shuttleworth realised that elements of the Afrika Korps were moving into the wadi from the other end. This initiated a battle in which the battalion, having appreciated the situation more quickly than the Germans, took 200 prisoners.