In the interim, Kublai acquired more supplies and men. He fortified Yan and the border defenses of northern China. Kadan defeated and executed Alandar, a general sent to secure the vital Central Asian trade routes for Ariq Böke. Lian Xixian, one of Kublai's Confucian advisers, commanded soldiers for the khan in western China. He won a victory against Ariq Böke's ally, Liu Taiping, in northwestern China, seizing food supplies intended for Ariq Böke's army. Lian also drove supporters of Ariq Böke out of the towns of Liangzhou and Ganzhou. In southwestern China, his forces protected Sichuan from Ariq Böke's encroaching troops. Kublai paid Kadan and Lian Xixian handsomely for their military service in gifts and promotions. He rewarded Kadan with 300 packs of silk and 300 taels of silver, and appointed Lian Xixian to the position of Prime Minister of the Right in the Secretariat.
