Hitler committed suicide at the end of World War II, so that already makes the statement false.
The Nuremberg trials were a series of 13 trials carried out in Nuremberg, Germany, between 1945 and 1949, seeking to bring many Nazi Party officials and high-ranking military officers to justice, as well as leading businessmen, lawyers, and doctors involved with the Nazi cause. Herman Goering was the highest-raking Nazi official to be put on trial at Nuremberg.
In a nutshell, the Korean War was a result of the Cold War. After WWII, the Japanese lost control of the Korean Peninsula which eventually was divided up between the US and the USSR. The line that divided the peninsula was named the “38th parallel.” The line that separated North Korea from South Korea.