Russia Outbuilds Ukraine Air Defences as Drones Blunt Offensive

On June 2, Defense Express chief editor Oleh Katkov laid out the arithmetic now driving the air war: Russia produces about 70 ballistic missiles a month for its Iskander and Kinzhal systems -- 60 Iskander-M plus 10 Kinzhal, per Ukrainian intelligence -- against the roughly 56 PAC-3 MSE interceptors Lockheed Martin builds in the same period, and because intercepting one Iskander takes two or three PAC-3s, the effective gap is far wider. The point was sharpened by an overnight barrage of 729 missiles and drones, with Kyiv the main target: at least 21 people were killed across Kyiv and Dnipro, a nine-storey building in Kyiv's Podilskyi district partially collapsed in a "double tap" strike, and the air force calls its interceptor supply a "starvation ration" -- pressure compounded by the Iran war's draw on US Patriot stocks.

The UN humanitarian coordinator in Ukraine, Matthias Schmale, condemned the assault through OCHA as the third large-scale attack on Kyiv, Dnipro and Kharkiv in three weeks, reporting homes, hospitals and shops destroyed. In Kyiv the strike damaged 11 educational institutions -- five preschools, four schools, a vocational school and a college -- adding to more than 400 destroyed nationwide since 2022. In the Kharkiv region, authorities ordered the mandatory evacuation of more than 7,000 civilians, including 1,702 children and 311 people with reduced mobility, from seven localities in the Bohodukhiv district under systematic Russian shelling.

Against that toll, the battlefield news ran Ukraine's way. The Institute for the Study of War said Ukrainian forces had largely halted Russia's Spring-Summer 2026 offensive, with Russian troops taking only a fraction of the ground they gained in May 2025, while Vladimir Putin resisted pressure from his own economic officials to cut unsustainable defense spending. At the GLOBSEC conference in Prague, European officials and analysts credited Ukraine's rapid embrace of AI and uncrewed systems -- drones and ground robots that can hold and retake territory, some operating autonomously once a human selects the target -- with offsetting Russia's numerical edge and forcing Moscow to scale back set-pieces such as the Victory Day parade.

Ukraine also pressed its long-range campaign. Drones struck the Ilsky oil refinery in Russia's Krasnodar Krai -- a 6.6-million-tonne-a-year plant that fuels the Russian military -- setting it ablaze, and in the same operation damaged a Pantsir-S1 air-defense system in Crimea and a drone warehouse in occupied Donetsk; the strikes followed a May campaign that hit ten refineries and halted six. A separate AI-guided counterlogistics effort, using systems including Swift Beat Hornets, is destroying hundreds of Russian cargo trucks a day in the 200 km zone behind the front -- more than five times the war-long average -- pushing Moscow to consider refurbishing tens of thousands of stored Cold War-era trucks.

The targeting cut both ways. President Volodymyr Zelensky said Defence Intelligence had warned that Russia has marked Ukrainian missile-development firms as priority strike targets, viewing Kyiv's growing ballistic and anti-ballistic production as a strategic threat, and the SBU said it had detained a GRU agent in Zakarpattia who was compiling addresses, output figures and personal data on defense-industry workers -- relaying it through his father in Kaliningrad -- for planned strikes and assassinations. All of it unfolded against a diplomatic vacuum: US-brokered peace talks, which Washington had hoped would produce a deal by June, have collapsed over Russia's demand for the whole of Donbas, a concession Kyiv refuses.