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Mykhailo Fedorov entered Ukraine’s defence ministry as a proven moderniser and left after only six months. His removal shows why changing a military during wartime is not merely a technical problem. Fedorov could expose waste, accelerate procurement and design ambitious personnel reforms, but he could not overcome a command structure that distrusted his methods or build the political alliances needed to make disruption last.

A reformer in a hurry

Fedorov had earned his reputation as digital-transformation minister. He introduced Diia, the app that put state services and digital identification on Ukrainians’ phones, then helped build the country’s “drone army” after Russia’s full-scale invasion. By using market incentives to expand production, he supported a range of weapons from small battlefield drones to bombers and interceptors.

He brought the same appetite for rapid change to defence. A ministry audit found 300bn hryvnia, or \$6.6bn, in overspending. Officials faced lie-detector tests, some procurement moved to open tenders and the reported cost of artillery shells fell by 16%. These moves threatened both bureaucratic habits and lucrative contracts, giving powerful insiders reasons to oppose him.

His most ambitious package targeted the army’s manpower crisis. It proposed tripling monthly pay for front-line infantry to \$7,000, offering fixed-term contracts, allowing limited demobilisation for the longest-serving troops and recruiting more foreigners. An estimated 300,000 soldiers absent without leave would receive a 100-day window to return without punishment. The plan was designed to make service more attractive and replace coercion with clearer incentives, but implementation began only in June after months of delay.

Two systems with no common language

The central conflict was with Ukraine’s traditional military leadership, especially commander-in-chief Oleksandr Syrsky. At a July war council, generals praised successful drone operations while attacking Fedorov’s missile and ammunition procurement. Fedorov replied that emergency drone purchases - financed by temporarily borrowing money earmarked for salaries - had made the operations possible. One observer described the two camps as different co-ordinate systems without a shared language.

The generals conceded that Fedorov improved drones and digitalisation, but argued that management skill was not a substitute for military experience. Some dismissed his reforms as public-relations packaging for work already under way and compared him with Robert McNamara, whose corporate methods did not translate cleanly from Ford to the Pentagon. Fedorov worsened the confrontation by openly challenging senior commanders and trying unsuccessfully to have Syrsky removed.

Both critiques contain part of the truth. Armies possess knowledge that outsiders can underestimate, particularly when they are fighting for national survival. Yet that expertise can also shield weak processes and vested interests. Fedorov identified real problems and produced measurable savings, but his aggressive style allowed opponents to portray reform itself as reckless interference.

Disruption needs a coalition

Volodymyr Zelensky eventually offered Fedorov the vacant prime minister’s post. In ordinary circumstances it would have been a promotion; in this case it was understood as the end of his defence project. Fedorov declined, and the interior minister was reported to be the likely replacement.

The episode exposes the limit of reform driven by one energetic minister. Wartime modernisation requires speed, but it also requires trust among soldiers, commanders, procurement officials and political leaders. Without that coalition, even sound changes remain vulnerable to delay or reversal. Fedorov’s lasting achievement will therefore depend less on his personal record than on whether Ukraine preserves the systems he began to build after removing the disrupter who built them.