In 645 AD, Emperor Taizong leads a massive Tang army in an invasion of Goguryeo, targeting the fortress at Ansi. After repelling an initial attack by the Goguryeon army, Taizong lays siege to Ansi, with his 200,000-strong army pitted against a vastly outnumbered 5,000-strong force led by Yang Manchun, a commander viewed as a traitor by the Goguryeon leader.
The Great Battle
The siege of Ansi Fortress unfolds as Yang Man-chun and his Goguryeo warriors engage in an 88-day battle against a massive Tang dynasty army of 500,000 men, valiantly defending their stronghold against overwhelming odds.
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