Moscow's drone strategy has been unique in the emphasis it places on supporting startups and small enterprises around the country.

The same data networks that enable phone apps and web surfing help drones navigate, so officials are imposing daily, patchwork shutdowns. The actions can be very disruptive to daily life.

Ukraine is developing new technology to blast Russian drones out of the sky for a fraction of the cost of American-made weapons used to counter Moscow’s massive escalation in drone warfare this summer,