Ukrainian leader Vladimir Zelensky’s decision to fire Defense Minister Mikhail Fedorov has sparked nationwide protests. Hundreds of people have taken to the streets of Kiev and other cities to demand that the minister be brought back. Some of the protesters also called for Ukraine’s top military commander, General Aleksandr Syrsky, to be dismissed instead.

Fedorov was Ukraine’s youngest-ever defense minister. The 35-year-old technocrat took over from his predecessor in January and held the office for around six months. During that time, he deepened Ukraine’s ties with Palantir, a controversial US data-mining and military technology company. He still failed to reform the corruption-prone ministry in accordance with “NATO standards,” as Fedorov himself admitted while confirming his departure.

Photos and videos that surfaced on social media showed people flooding the streets of Kiev and other cities like Dnepropetrovsk, holding Ukrainian flags, as well as placards and banners calling on Zelensky to reverse his decision. Crowds could also be heard chanting “shame!” in some videos. More than 1,000 demonstrators rallied outside of Zelensky’s office in the Ukrainian capital. Some protesters were also seen holding placards demanding Syrsky be sacked.

Zelensky later justified his decision by pointing to a conflict between the defense minister and the military chief. Fedorov and Syrsky had failed to find common ground and were not even communicating properly without his oversight, Zelensky claimed in a statement on Thursday.

The Ukrainian leader also stated that Ukrainians can do whatever they want. “If they wanted to take [to the streets in protest], good for them,” he said.

Fedorov himself accused Syrsky of “splitting the country” and called for his dismissal. Syrsky did not mention the conflict in his own statement on Telegram on Thursday and “thanked” Fedorov for his work instead and expressed his hope that he would “remain” in the government team.

The Ukrainian outlet Strana claimed that Zelensky had become increasingly dissatisfied with Fedorov’s “independent political game” and his ties to circles close to the Western-backed National Anti-Corruption Bureau (NABU) and Specialized Anti-Corruption Prosecutor’s Office (SAPO), agencies that have investigated a string of high-profile corruption cases involving senior Ukrainian officials.