On 23 December, Major-General David Murray-Lyon of the Indian 11th Infantry Division was removed from command to little effect. By the end of the first week in January, the entire northern region of Malaya had been lost to the Japanese. At the same time, Thailand officially signed a Treaty of Friendship with Imperial Japan, which completed the formation of their loose military alliance. Thailand was then allowed by the Japanese to resume sovereignty over several sultanates in northern Malaya, thus consolidating their occupation. It did not take long for the Japanese army's next objective, the city of Kuala Lumpur, to fall. The Japanese entered and occupied the city unopposed on 11 January 1942. Singapore Island was now less than away for the invading Japanese army.