WW1 - The Arab Northern Army, lead by Emir Feisal, (Feisal's Army), pictured here coming into Yanbu with a smaller force of the 2,000 camels from three disbanded battalions of the Imperial Camel Corps Brigade. Yanbu' al Bahr, also known simply as Yanbu, Yambo or Yenbo, is a major Red Sea port in the Al Madinah province of western Saudi Arabia. Yanbu served as a supply and operational base for Arab and British forces fighting the Ottoman Empire during World War I.