Putin vows to punish ‘armed uprising’ by Wagner militia as Russia is plunged into crisis
https://www.cnn.com/2023/06/23/europe/russia-mod-wagner-yevgeny-prigozhin-intl/index.html
This incident shows strong leadership without ethics can easily be collapsed even in the widest nation. Though Wagner hasn't yet attack heavily on Moscow, another troop near Moscow can potentially be the similar rebellion group.