The Wagner Group's success on certain fronts in Ukraine – particularly their costly battle to control Bakhmut, – bolstered the profile and the confidence of its leader, Yevgeny Prigozhin.
Read more: How Prigozhin's overestimation ended in his humiliation
When he felt did not receive the recognition this success deserved, he escalated a clash with the traditional military command. And so Wagner's breakthrough on the battlefield simultaneously raised mistrust among the military leadership.
Prigozhin went public with claims of insufficient ammunition supply to his forces. Additionally, reports have claimed that some of Wagner's positions were mistakenly targeted by friendly fire from the Russian army, although there is currently no concrete evidence or indications to support this claim.
There are clear similarities with the trajectory in Sudan of the Rapid Support Forces.
The growing ambition of its leadership was a driving force behind senior figures in the regular army insisting on integrating it into their ranks. This may have been an attempt to diminish its influence after it had reached a significant size, or a bid to consolidate power and influence during a highly challenging transitional phase in Sudan.
Read more: Sudan's leaders stoop to new levels of vanity
But whatever else, rebellion became the choice for the Rapid Support Forces leadership as if it was a matter of all or nothing for them.
That was not so in Russia. For all the similarities between the two militias and their respective rebellions, they led to vastly different outcomes.
The Wagner rebellion was officially declared over within hours, with no conclusive evidence of the mysterious deal struck between Putin and Prigozhin, mediated by the President of Belarus, that allegedly brought an end to one of the most severe crises in Russia since the dissolution of the Soviet Union.
The undisclosed information contained within the black box of this rebellion could potentially alter certain patterns of political and military interactions in Russia, as Putin's position was shaken like never before in nearly a quarter of a century.
Read more: Wagner 'coup attempt' reveals cracks in Putin's delicate power balance
Meanwhile, the rebellion of the Rapid Support Forces continues unabated, and the ongoing fighting in Sudan has left the country going from bad to worse.
Indeed, these rebellions resulted in two different outcomes, making them among the most significant events of 2023. However, what they share, in addition to their motivations, is the inherent danger posed by armed groups transforming into parallel armies.
This latent danger may surpass the risks posed by militias opposing governments. Therefore, a rebellion by those close to the established authority can potentially be more dangerous than one from more distant forces.