Goguryeo's ally inside the southwest, Baekje, fell for the Silla?�Tang alliance in 660; the victorious allies continued their assault on Goguryeo for the next eight years. In the meantime, in 666 (however dates differ from 664??66), Yeon Gaesomun died and civil war ensued amongst his three sons. Silla?�Tang ultimately vanquished https://jeju-weather77766.jts-blog.com/26494672/goguryeo-room-salon-부산룸싸롱-for-dummies