Demonstrations in the Ukrainian capital Kyiv were staged again on Friday.
After his resignation, Fedorov has questioned Commander-in-Chief Oleksandr Syrsky's leadership style - an old-fashioned, Soviet-style leadership style, according to Fedorov.
President Volodymyr Zelensky has nominated Yevheniy Chmara, the country's former head of the SBU security service, to the post of defence minister, but it still requires parliamentary approval.
On Friday, Zelensky also proposed that the country's former interior minister, Ihor Klymenko, become the new secretary of the country's National Security and Defense Council, thereby replacing Rustem Umjerov, writes Kyiv Independent.
