Goguryeo's ally inside the southwest, Baekje, fell on the Silla?�Tang alliance in 660; the victorious allies continued their assault on Goguryeo for the next 8 yrs. In the meantime, in 666 (even though dates vary from 664??66), Yeon Gaesomun died and civil war ensued among his 3 sons. Silla?�Tang sooner https://griffin9x863.blog2learn.com/74979469/indicators-on-goguryeo-room-salon-부산룸싸롱-you-should-know