Middle East
Mesopotamia – Death march from Kut begins: 2,592 British soldier PoWs (Kurd cavalry regiment escort) start 1,200-mile forced march to Anatolia; reach Ctesiphon on May 14.
SyriaÂ: Djemal Pasha hangs 21 ‘Autonomous Syria’ Arab leaders without trial including a Ottoman senator.
Air War
Western Front: Unfavourable weather reduces flying until May 10 and on May 25.