"Sui dynasty" . "Battle of Linyuguan" . . . . . "10,000" . . "Unknown" . . . "China" . "Battle of Linyuguan" . . "Goguryeo" . . "Mohe" . "TacticalSui Dynastyvictory" . "Unknown" . . . . . . . . . . "a joint pre-emptive invasion" . "Sui Dynasty" .