NOT KNOWN FACTS ABOUT KOREA

Because the mountainous region is totally on the jap Section of the peninsula, the principle rivers often movement westwards. Two exceptions are the southward-flowing Nakdong River and Seomjin River.Nevertheless the Sui army was lured right into a trap by the famed Koguryŏ commander Ŭlchi Mundŏk, and endured a calamitous defeat on the Salsu (Ch'