After WWII ended, the Koreans divided the country into two separate countries, with the dividing line being the 38th parallel, which crosses Korea at 38 degrees latitude. The war was the better part of Korea, South Korea, who we allied with, against North Korea, who the horrible Soviets allied with. After the war, the country still remained divided. North Korea, of course, had a communist dictator who caused serious financial issues. But, partly in thanks to the United States, South Korea was successful, and we still keep troops over there since we love to support our allies.