 Accusing the Song of violating the agreement and realizing the weakness of the Song , the Jin generals launched a second punitive campaign , again dividing their troops into two armies . Wanyan Zonghan , who had withdrawn from Taiyuan after the Kaifeng agreement and left a small force in charge of the siege , came back with his western army . Overwhelmed , Taiyuan fell in September 1126 , after 260 days of siege . When the Song court received news of the fall of Taiyuan , the officials who had advocated defending the empire militarily fell from favor again and were replaced by counselors who favored appeasement . In mid December the two Jurchen armies converged on Kaifeng for the second time that year . 
 Accusing the Song of violating the agreement and realizing the weakness of the Song , the Jin generals launched a second punitive campaign , again dividing their troops into two armies . Wanyan Zonghan , <a href='null_relcl' title='1'><mark>who</mark></a><a href='been_done' title='2'><mark>had</mark></a> withdrawn from Taiyuan after the Kaifeng agreement and left a small force in charge of the siege , came back with his western army . Overwhelmed , Taiyuan fell in September 1126 , after 260 days of siege . When the Song court received news of the fall of Taiyuan , the officials <a href='null_relcl' title='3'><mark>who</mark></a><a href='been_done' title='4'><mark>had</mark></a> advocated defending the empire militarily fell from favor again and <a href='uninflect' title='5'><mark>were</mark></a> replaced by counselors <a href='null_relcl' title='6'><mark>who</mark></a>favored appeasement . In mid December the two Jurchen armies converged on Kaifeng for the second time that year . 
Accusing the Song of violating da agreement and realizing the weakness of the Song , the Jin generals launched a second punitive campaign , again dividing their troops into two armies . Wanyan Zonghan , done withdrawn from Taiyuan after the Kaifeng agreement and left a small force in charge of tdasiege , came back witt his western army . Overwhelmed , Taiyuan fell in September 1126 , after 260 days of siege . When thdaong court received news of the fall of Taiyuan , the officials done advocated defending the empire militarily fell from favor again and was replaced by counselors favored appeasement . In mid December the two Jurchen armies converged on Kaifeng for the second time dat year .