National Geographic: Life On China-North Korea BorderWIRED: A Glimpse of China's Border with North KoreaVICE: Chinese Swimming Club on North Korean BorderAt the end of the Korean Koryo dynasty in the 14 century, the Yalu River became the Chinese and Korean border. At the end of 2017, I documented daily life in China along the icy river after the UN increased sanctions against Pyongyang in an attempt to halt its weapons program.