Complex sentence: The flank columns were slow moving in the jungle and the Ashantis moved around them, in their normal horseshoe formation and attacked the camp to the rear, the Royal Engineers defended themselves until relieved by the Rifle Brigade.
Split into simpler sentences: The flank columns were slow moving in the jungle and the Ashantis moved around them in their normal horseshoe formation and attacked the camp to the rear. The Royal Engineers defended themselves until relieved by the Rifle Brigade.