NOT KNOWN DETAILS ABOUT KOREA

Since the mountainous area is mostly on the jap Element of the peninsula, the leading rivers are inclined to circulation westwards. Two exceptions would be the southward-flowing Nakdong River and Seomjin River.Nevertheless the Sui army was lured right into a trap via the famed Koguryŏ commander Ŭlchi Mundŏk, and endured a calamitous defeat in th