Complex sentence: Reconnaissance patrols discovered that Jaffa was not occupied by any Turkish forces, so the 3rd Squadron and the Canterbury Mounted Rifles moved in to provide a garrison, while the rest of the regiment and the Wellington Mounted Rifles returned to Ayun Kara.
Split into simpler sentences: Reconnaissance patrols discovered that Jaffa was not occupied by any Turkish forces, so the 3rd Squadron and the Canterbury Mounted Rifles moves in to provide a garrison. While the rest of the regiment and the Wellington Mounted Rifles return to Ayun Kara.