These facts include uncovering the most secretive city, Pyongyang, as well as U.S. bombings. They also took a deep look into how exactly the Korean War was able to save Taiwan from becoming communist and how the Soviet Union and Joseph Stallion got involved into the Korean war. The history of the war runs deep and there are many things to still dive into.
Source: https://www.cnn.com/2020/06/24/asia/korean-war-70th-anniversary-intl-hnk/index.html