From their new base in Wajh, Arab rebels are able to threaten the railway line from Damascus to Medina, where Fahreddin commands a large Turkish force. Today an Arab raiding party succeeds in derailing a Medina-bound train with a mine exploded underneath it. The attack emphasises the isolation of Fahreddin’s force and the difficulty of keeping them supplied.
Djemal Pasha, one of the triumvirate that effectively rules Turkey, is the Ottoman proconsul in the Levant. Based in Damascus, he fears that the Medina garrison will be cut off. He would rather it was withdrawn. But Fahreddin is determined to stay in Medina, preventing the Arab rebels from establishing complete control over the Hejaz region. And truth be told the Arabs’ British friends are happy for Fahreddin to stay there. The British are preparing an offensive into Palestine and they do not want Fahreddin’s men joining the Turks there. So through liaison officers like Captain Lawrence they arrange for the Arabs to continue their attacks on the railroad, disrupting travel along it sufficiently that it will be nigh impossible for Fahreddin to extract his garrison.
image source: (Weapons and Warfare; I think the image is a still from Lawrence of Arabia)