Southern Yan
Regarded as one of the best generals of the Northern and Southern dynasties, Liu Yu started off by reclaiming much of the territory the Chinese had lost during the Sixteen Kingdoms era. He started off his career by campaigning against Southern Yan, which bordered Jin to the north and had adopted a policy of aggression and kidnapping citizens from the Jin. By spring of 410, he had captured the southern Yan capital at Guanggu, ending Southern Yan.