…P'yonggang (Pyongyang).

Many modern Chinese historians argue that since the early Goguryeo capital had been located in what is now China, the history of that kingdom prior to 427 should be regarded as Chinese history).

There are various reasons for this shift: to prepare for the offensive against Baekje and Silla in the south and to create a greater and more magnificent capital befitting a kingdom that has experienced large-scale expansion.

After moving the capital southward, King Jangsu decides to continue the conquests of his father.