The correct answer to this open question is the following.
Although there are no options attached or further historic references, we can comment on the following.
It seems that we are talking about the Great Arab Revolt that started in June 1916 and ended until June 1918, during the actions of World War I.
The group that most likely supported Hussein in his rebellion were the Hashemites, with the support of the British troops.
The Arab troops fought the Ottoman Empire's troops. The Arabs had the support of Great Britain. That is why the Arabs tried to create a free unified state, from Yemen to Syria. At least that was what the Sharif of Mecca, Hussein bin Ali.
