Complex sentence: On approaching the palm grove a small detachment was sent to reinforce the southeastern redoubt finding the Ottoman firing line south of the Dueidar to Katia track and from the principal redoubt.
Split into simpler sentences: On approaching the palm grove a small detachment was sent to reinforce the southeastern redoubt. The Ottoman firing line was situated south of the Dueidar to Katia track and from the principal redoubt.