The Battle of Salsu River Eulji Mundeok
after founding of sui in 589, precarious peace maintained several years between new chinese dynasty , goguryeo. however, in 597, yeongyang launched attack on sui @ battle of linyuguan. in response, sui invaded goguryeo, invasion defeated due constant ambushes , unfavorable weather. in 7th century, emperor yang learned of secret correspondence between goguryeo , eastern turkic khaganate. emperor yang demanded yeongyang come , submit him or face imperial tour of territories . when yeongyang failed so, emperor yang prepared war. mustered army of on 1,133,000 troops , more 2 million auxiliaries , led them against goguryeo in 612. sui army overran goguryeo s border defenses, camped on banks of liao river , prepared bridge it. eulji mundeok, commissioned field marshal, called upon defend nation. prepared troops meet numerically superior sui forces strategy of deception, using feigned retreats , sudden attacks. after sui forces crossed liao river, small contingent sent attack city of yodong,...