Russia has started launching its strike drones during the day, not only after dark. The reason is the new jet-powered Geran drones, which fire groups cannot take down, so for Russia there is no longer any difference between attacking by day or by night, Serhii "Flash" Beskrestnov, President Zelenskyy's adviser on defense technologies, told Glavcom.

The near-hourly daytime raids are the new face of a campaign that culminated on 1 September, Knowledge Day, when Russia hit Kyiv and its region with ballistic missiles and jet-powered drones and killed 12 people. That strike culminated a six-day assault on the capital that began on 27 August, two days after CIA Director John Ratcliffe arrived in Moscow. However, even after that, the attack continued. Sirens now sound across Kyiv and the surrounding oblast roughly once an hour, around the clock.

Why the shift to daylight

The daytime raids carry an added economic and psychological weight, he said. The threat of strikes forces shops and businesses to open and close unpredictably, snarls transport, and can halt rail service.

"They understand perfectly well that daytime attacks hurt the population and business," Beskrestnov said, adding that the state railway Ukrzaliznytsia is paralyzed.

Keeping the defenders on their feet

A further aim is to hold Ukraine's air defense in a permanent state of readiness, Beskrestnov said. Round-the-clock attacks mean radar stations and generators must run without pause.

"Radar stations and generators run constantly, and that also puts a strain on our troops," he added.

Kyiv remains a Russian prime target because it carries symbolic as well as military weight, as the capital houses the government, business, and warehouses, and a strike there would resonate far more than terrorizing a small town.

Russian forces first concentrated on districts nearer the drones' launch corridors — Kyiv's Left Bank, and the Brovary and Boryspil raions — before switching to the other bank to hunt for targets. As the cold season approaches, he expects Russia to intensify strikes on the energy infrastructure it has so far spared.