Gang Gam-chan (; 22 December 948 – 9 September 1031) was a medieval Korean government official and military commander during the early days of Goryeo Dynasty (918–1392). Even though he was a career scholar and government official, he is best known for his military victories during the Third Goryeo-Khitan War. Gang came from the Geumju Gang clan. Early life Gang was born on 22 December 948 into a prominent aristocratic family in the hyeon of Geumju (now Gwanak-gu in Seoul). His father also worked for the King Taejo of Goryeo, and had been awarded for helping establish a new dynasty and unifying the Korean Peninsula. A legend tells that on the day he was born a meteor fell toward his house, and an advisor to the king visited to find that a baby had just been born there, whom he predicted would become great and be long remembered. Gang Gam-chan's birth site is called Nakseongdae (site of the falling star), near Seoul's Nakseongdae Station on the Line two subway. As a child, Gang was small for his age, but he showed signs of leadership and loyalty at an early age. At seven he began to learn Confucian philosophy, military tactics and martial arts from his father. After his father's death in 964, he left his household and traveled around the country. In 983, he received the top score in the civil service examination, and qualified as a government official at age thirty-six. In 992, he joined the royal court as a deputy under the Minister of Education. Goryeo-Khitan Wars In 993, the Liao Dynasty ordered General Xiao Sunning to invade Goryeo. The opinions among the court officials were divided, either to fight against the Khitans or to negotiate with them. Gang supported the use of negotiations, which was also supported by the king as the official decision. Seo Hui was sent to General Xiao as Korean representative, and the successful truce negotiation led to the withdrawal of Khitan forces and establishment of friendly relationship between Liao and Goryeo. In 1004, the Khitans defeated the Chinese Song Dynasty and forced its emperor to pay tribute to the Khitan. With Song defeated, the only threat remaining against the Khitans was Goryeo. Also in 1009, General Gang Jo of Goryeo led a coup against the government; he deposed and murdered King Mokjong and began a military rule, and broke the peaceful relationship with