The Battle of Salsu was the huge battle that occurred in the year 612, during second Goguryeo-Sui War, between Korean kingdom Goguryeo and the Chinese Sui Dynasty. Goguryeo cavalry forces, although outnumbered, overwhelmed the Chinese troops in combat and eventually emerged victorious. The battle is one of the most lethal battles in world history, and it is the most lethal battle in the history before the World Wars, with more than 300,000 casualties. With the victory over Sui dynasty in Salsu, Goguryeo eventually became victor of the war itself, while Sui Dynasty started to crumble from within and finally brought down from internal strife. The Goguryeo-Sui War was a series of campaigns launched by the Sui Dynasty of China against the Goguryeo dynasty of Korea between 598 and 614. ... Events Saint Columbanus moves to Italy to establish the monastery of Bobbio (approximate date). ... The Liao He (Liao River) is the principal river in southern Manchuria. ... The Sui Dynasty (Chinese: ; pinyin: ; 581-619[1]) followed the Southern and Northern Dynasties and preceded the Tang Dynasty in China. ... Three Kingdoms of Korea, at the end of the 5th century (the northern and western borders of Goguryeo are extended in some maps). ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Events Saint Columbanus moves to Italy to establish the monastery of Bobbio (approximate date). ... The Goguryeo-Sui War was a series of campaigns launched by the Sui Dynasty of China against the Goguryeo dynasty of Korea between 598 and 614. ... Three Kingdoms of Korea, at the end of the 5th century (the northern and western borders of Goguryeo are extended in some maps). ... The Sui Dynasty (Chinese: ; pinyin: ; 581-619[1]) followed the Southern and Northern Dynasties and preceded the Tang Dynasty in China. ... The following is a list of the most lethal battles in world history. ... A world war is a military conflict affecting the majority of the worlds major nations. ...