Role of North Korea
After World War II, Korea split into 2 different countries - North Korea and South Korea. North Korea was dominated by Russia and supported communism. South Korea had the support of American and were against communism. North Korea unexpectedly attacked Seoul, South Korea, wanting to gain more land/territory and drag them into communism. North Korea pushed the South Koreans behind the 38th parallel and was not planning to give up until they had South Korea under their control. The conflict between South Korea and North Korea was still going on. South Korea was in terrible condition. They were not prepared for this and had no one and nothing to fight back. The United States found out what was happening and was willing to help. The United States and South Korea teamed up and was ready to fight back against the North Koreans. Since South Korea was now more powerful and the United States had their back, they were invincible. Throughout the whole war, no one really gained anything. Both sides were always pushed back and forth across the 38th parallel. No one from South Korea joined North Korea and vice versa. No one was benefitting from the war. Only people were getting hurt. North Korea and South Korea never agreed to joined together as a country. The war ended as a stalemate. North Korea still believe in communism and are in political conflicts with the U.S today.
Implications
North Korea obviously had a huge role in the Korean War & the war is called the "Korean War" to being with. If it wasn't for the surprise attack on South Korea, the war wouldn't have even started. I honestly think it wasn't necessary for them to do so though. They had Russia and China on their side supporting communism already. Those are two very large countries. There was no need to drag South Korea into this.