 The continuing insurgency of anti @-@ Jin forces in northern China hampered the Jurchen campaigns south of the Yangtze . <unk> to let the war drag on , the Jin decided to create Da Qi ( the " Great Qi " ) , their second attempt at a puppet state in northern China . The Jurchens believed that this state , nominally ruled by someone of Han Chinese descent , would be able to attract the allegiance of disaffected members of the insurgency . The Jurchens also suffered from a shortage of skilled manpower , and controlling the entirety of northern China was not administratively feasible . In the final months of 1129 , Liu Yu ( <unk> ; <unk> – <unk> ) won the favor of the Jin emperor Taizong . Liu was a Song official from Hebei who had been a prefect of <unk> in Shandong before his defection to the Jin in 1128 . Da Qi was formed late in 1130 , and the Jin enthroned Liu as its emperor . <unk> in Hebei was the first capital of Qi , before its move to Kaifeng , former capital of the Northern Song . The Qi government instituted military conscription , made an attempt at reforming the bureaucracy , and enacted laws that enforced the collection of high taxes . It was also responsible for supplying a large portion of the troops that fought the Song in the seven years following its creation . 
