In spring 668, Li Ji turned his attention to Goguryeo's northern cities, capturing the important city Buyeo (扶餘, in modern Siping, Jilin).
I foråret 668 vendte Li Ji sin opmærksomhed mod Goguryeos nordlige byer, erobrede den vigtige by Buyeo (扶餘, i det moderne Siping, Jilin).