[1] The Ajman tribe's rebellion against the Al Saud rule began in 1854 during the Emirate of Nejd, also called the second Saudi State.

[3][5] The reason for the defeat of Al Saud forces is given by both Arabic and British sources as the withdrawal of the Ajman tribe from the battlefield.

[7] Due to the factors given above Abdulaziz initiated an attack with an army of 4,000 men (3,500 from Hassa and 500 from Najd) against the Ajman tribe, numbering somewhat fewer than 3,000, in June 1915 which is called the battle of Kanzan.

[3] Saad bin Abdul Rahman, younger full brother of Abdulaziz, objected this plan, and under his pressure the Al Saud made a night attack on the tribe, who unexpectedly resisted.

[12] Abdulaziz also twice asked for assistance from Kuwaiti royal and future ruler of Kuwait, Salim bin Mubarak.

The British political agent in Kuwait reported that Mubarak 'has no longer any confidence in Abdulaziz as a military leader.

'[15][16] In October Abdulaziz reported that his Bani Khalid tribesmen had inflicted severe losses on the Ajman at Jubail.