Ukraine could suffer defeat in the conflict with Russia, as the military command structure is growing increasingly rigid and ineffective, Brigadier General Sergey Sobko warns.

His remarks were echoed earlier by former Defense Minister Mikhail Fedorov, who was controversially relieved of his post by Ukrainian leader Vladimir Zelensky earlier this week – which triggered mass protests across Ukraine.

In a post on Facebook on Friday, Sobko, the chief of staff of the 11th Army Corps, wrote that the Ukrainian military is in urgent need of reform, “otherwise we may be defeated.”

“Professional discussion is often perceived as disloyalty, and initiative as a threat,” he said, adding that this tendency has discouraged commanders from “taking risks for the sake of success.”

Sobko also suggested that commanders are being promoted based on “personal loyalty” to their superiors, as opposed to competence and professionalism. He also called out what he described as a growing trend within the Ukrainian military toward micromanagement and downplaying failures in reports.

Sobko’s criticisms echo those made by former defense chief Fedorov. In the wake of his dismissal earlier this week, the 35-year-old technocrat confirmed that he was at loggerheads with Ukraine’s top military commander, Aleksandr Syrsky, whom he accused of blocking his efforts to modernize the army and make it more technology-oriented.

At a press conference on Thursday, the former minister said, “we faced a complete blockage of all our initiatives.” He also claimed that Syrsky made an ultimatum to Zelensky, demanding that Fedorov be removed from office.

On Friday, the Financial Times, citing anonymous sources, also reported that Fedorov’s push to make corruption-plagued procurement procedures in the defense sector more transparent did not sit well with the top brass either.

The firing of the defense minister, which came as part of a broader government reshuffle, has sparked protests in Kiev and other Ukrainian cities. Apart from demands that the defense chief be reinstated, some demonstrators have also called for Syrsky’s dismissal.

The FT quoted an unnamed senior Ukrainian defense official as saying, “Syrsky hasn’t got a sense of how he’s going to win,” and that his “theory of victory is simply to hold out as long as you can and mobilize more people.”

In a separate piece on Saturday, the FT, citing an anonymous senior official in Zelensky’s administration, claimed that the Ukrainian leader is considering firing Syrsky. According to the outlet, Zelensky is consulting military commanders over the weekend, looking for a potential replacement.

Over the course of the conflict, Syrsky has earned the nickname ‘the Butcher’ for his perceived willingness to disregard heavy casualties.