NOT KNOWN FACTS ABOUT KOREA

As the mountainous location is mostly on the eastern part of the peninsula, the most crucial rivers are likely to stream westwards. Two exceptions are classified as the southward-flowing Nakdong River and Seomjin River.Even so the Sui army was lured right into a lure by the famed Koguryŏ commander Ŭlchi Mundŏk, and experienced a calamitous defea