 Before they could invade the Song , the Jurchens reached a peace agreement with their western neighbors the Tangut Western Xia in 1124 . The following year near the Ordos Desert , they captured Tianzuo , the last emperor of the Liao , putting an end to the Liao dynasty for good . Ready to end their alliance with the Song , the Jurchens began preparations for an invasion . 
 Before they could invade the Song , the Jurchens reached a peace agreement with their western neighbors the Tangut Western Xia in 1124 . The following year near the Ordos Desert , they<a href='been_done' title='1'><mark></mark></a> captured Tianzuo , the last emperor of the Liao , putting an end to the Liao dynasty for good . Ready to end their alliance with the Song , the Jurchens began preparations for an invasion . 
Before they could invade da Song , the Jurchens reached a peace agreement with their western neighbors the Tangut Western Xia in 1124 . The following year near tdaOrdos Desert , they done captured Tianzuo , the last emperor of the Liao , putting an end to thdaiao dynasty for gud . Ready to end their alliance w/ thedang , the Jurchens began preparations for an invasion .