Gwanggaeto begins his conquest of Dongbuyeo in…
July 410 CE
Gwanggaeto begins his conquest of Dongbuyeo in 410 with a massive army, against whom the Dongbuyeo army is no match, and it suffers a series of defeats, finally surrendering to Goguryeo after King Gwanggaeto has conquered sixty-four walled cities and more than fourteen hundred villages.
Gwanggaeto also has attacked several Malgal and Ainu tribes further north, bringing them under Goguryeo domination.