Seven Pillars of Wisdom by T.E. Lawrence

Fakhri Pasha was still playing our game. He held an entrenched line around Medina, just far enough out to make it impossible for the Arabs to shell the city. (Such an attempt was never made or imagined. ) The other troops were being distributed along the railway, in strong garrisons at all water stations between Medina and Tebuk, and in smaller posts between these garrisons, so that daily patrols might guarantee the track. In short, he had fallen back on as stupid a defensive as could be conceived. Garland had gone south-east from Wejh, and Newcombe north-east, to pick holes in it with high explosives. They would cut rails and bridges, and place automatic mines for running trains.

The Arabs had passed from doubt to violent optimism, and were promising exemplary service. Feisal enrolled most of the Billi, and the Moahib, which made him master of Arabia between the railway and the sea. He then sent the Juheina to Abdulla in Wadi Ais.