On May 8, 2019, Hyesan launched an attack on Mudanjiang. The Hayesan team led by Mr_X1234 assembled in the outer city of Mudanjiang. Then, Hyesan launched an attack on the Mudanjiang personnel. Because Mudanjiang's defense was not better than Hyesan's, Hyesan killed several soldiers in Mudanjiang. Then, a support team led by Chinese Youtuber Zi_Min arrived in Mudanjiang, but it was still unable to recover the situation. As a result, the Hyesan side dug trenches in the open area outside Mudanjiang River to prevent the Mudanjiang side from retaliating. The Hyesan side withdrew Hyesan and the Mudanjiang side suffered a terrible defeat.
