On June 23, 2023, Yevgeny Prigozhin, the boss of the Russian mercenary group Wagner Group, posted a short video on his social media saying that his troops were attacked by the Russian army and suffered casualties. High-level officials should be responsible for this matter and asked President Putin to replace relevant officials including Defense Minister Shoigu. 　　At the same time, Prigorzhin also claimed that the Russian army has now lost a large area of ​​land and is retreating from eastern and southern Ukraine. The actual number of soldiers killed in battle is 3 to 4 times higher than the reported figure. 　　After sending out a video attacking the Ministry of…