Why didn't the Geum Dynasty and Goryeo play?

 Goryeo fought three all-out wars against the Jordan of the Khitan people (at this time, Yonara was practically an all-out war).King Seongjong of the Liao Dynasty even went to his parents' home, and Buksongwa had to subjugate the Song Dynasty, so he didn't have to worry much about the dangers in the rear. Later, he fought decades of war with the Mongolians, but why did he bow his head? No matter how powerful Lee Ja-gyeom is in Goryeo, it is said that Lee Ja-gyeom was enlisted in the Geum Dynasty to maintain power, but the explanation is not sure. In any case, after 10 years of its founding, the Geum Dynasty defeated the then-East Asian military power, Yonara, and expelled North Song, an economic powerhouse, into Gangnam in two years. What's interesting is that the Yeojin people's Geum Dynasty and Goryeo, who once regarded Goryeo as their parents' country, are brothers and later pressuring Goryeo with military relations. This is the same pattern for the Manchurians, descendants of the Yeojin 500 years later. After Jeong Myohoran, Joseon was the blind of brothers >> After Byeongja Horan, as the blind of military gods... What is mysterious is that Kim Boo-sik, who is accused of being a four-generationist and pro-Chinese, has not even been properly enlightened in this kind of gold country. At that time, even if North Song collapsed in 1127 and South Song was founded, the rule of the Geum Dynasty would not have been perfect until the 1140s due to the strong resistance of the Han people represented by Akbi, but it is a little strange that Goryeo rejected Song Dynasty's request for military assistance. When Yonara was about to collapse to the Geum Dynasty, she asked for military assistance (at this time Goryeo was writing the chronology of Yonara, so it can be said that Yonara was the country of origin(?), but I can accept it if she fought a war and said it was a barbarian country... #In any case, it was clear that Goryeo was a very different country from Joseon. Seo Geung's Goryeo Dogyeong also showed a more colorful (?) cultural level than Joseon, and King Goryeo wore Hwangryongpo, the emperor's clothes, and wrote a 12-sided scroll... What is certain is that the Song Dynasty of the Liaoning Dynasty rejected the request for military aid, which was very different from the Joseon Dynasty and Qing Dynasty's request to Ming Dynasty. Of course, during the One Gap Seop period, it was reduced, which was taken away by the Japanese expedition.- Anyway, it's a bit of a mystery that I spent more than 100 years without any dispute with the Golden Kingdom.