Andrew E. Kramer

Mr. Fedorov became the youthful face of Ukraine’s successful drone warfare program. The move to replace him has prompted street protests.

Demonstrators demanded the reinstatement of Mykhailo Fedorov, who had come to symbolize Ukraine’s success in using drones to strike back against Russia.

Mykhailo Fedorov announced he was leaving the ministry on Wednesday after conflicts with generals and military contractors over the role of innovative robot and drone weapons in war.

President Volodymyr Zelensky said Ukraine’s prime minister, Yuliia Svyrydenko, would step down amid a broader shake-up in Ukraine’s senior leadership.

“After 26 years in power, age is beginning to take its toll,” President Volodymyr Zelensky of Ukraine wrote of his Russian counterpart, bragging of a recent strike on St. Petersburg.

As an annual economic conference was set to begin, President Volodymyr Zelensky said Ukraine had targeted a navy base and an oil terminal in the region that includes Russia’s second-largest city.

Andriy Melnyk, criticized as a Nazi collaborator and lionized as an anti-Soviet resistance leader, was given state honors for his reburial near Kyiv.

Buildings rattled in the Ukrainian capital for hours early Sunday. It was unclear if Russia’s Oreshnik intermediate-range ballistic missile had been used.

Mykhailo Fedorov, Ukraine’s 35-year-old defense minister, sees futuristic military technology as crucial to his country’s survival.

Ideas have been floated for how the contaminated zone could bring economic benefits to Ukraine. But for the foreseeable future, it will be an army-controlled security belt.

The proposal reflects a global reality in which governments appeal to President Trump’s vanity to get American might on their side.

The proposal reflects a global reality in which governments appeal to President Trump’s vanity in order to get American might on their side.