King Jangsu vs King Zhaoxiang of Qin

Jangsu became king of Goguryeo upon the death of his father, Gwanggaeto the Great. He inherited a vast empire and continued its development.

Jangsu moved the Goguryeo capital from Gungnae (Ji'an) to Pyongyang. This strategic relocation strengthened control over the Korean Peninsula and facilitated trade and diplomacy.

Jangsu sent envoys to the Northern Wei dynasty in China, establishing formal diplomatic relations. This helped secure Goguryeo's borders and facilitated cultural exchange.

Jangsu successfully repelled invasions by the Northern Wei dynasty, maintaining Goguryeo's territorial integrity. His military leadership preserved the kingdom's independence.

Jangsu died at the age of 97, after a reign of approximately 78 years, one of the longest in world history. His rule stabilized and expanded Goguryeo's power.

Qin general Bai Qi, under King Zhaoxiang's command, defeated a coalition of Wei and Han forces at Yique, killing 240,000 enemy troops. This victory eliminated the main military threat from the central plains and opened the way for Qin's eastward expansion.

King Zhaoxiang appointed Fan Ju as chancellor, who implemented policies to centralize power, reduce the influence of noble families, and promote capable officials. These reforms strengthened Qin's administrative efficiency and military capacity, laying the foundation for unification.

Qin forces under Bai Qi besieged and defeated the Zhao army at Changping. After the Zhao surrender, Bai Qi ordered the execution of 400,000 Zhao soldiers, the largest massacre in ancient Chinese history. This victory crippled Zhao and solidified Qin's dominance.

King Zhaoxiang's forces conquered the remaining territory of the Eastern Zhou dynasty, capturing King Nan of Zhou. This ended the Zhou dynasty's nominal rule after 800 years, symbolically clearing the way for Qin's eventual unification of China.