Frustrated by Ukrainian electronic warfare, Russia transformed its drone arsenal to be harder—or impossible—to jam.

Most of Russia's tiny first-person-view drones now send and receive signals via jam-proof fiber optic cable instead of wireless radio. For heavier one-way attack drones that travel too far for fiber optics, the Russians have mostly switched to jam-resistant mesh radio networks made up of many interconnected senders and receivers.

In both cases, China is key. Chinese companies sell Russian companies the optical fibers and mesh modems that the Russians install in their drones. In other words, Beijing is the critical enabler in Moscow's ongoing aerial aggression.

That's the unsurprising yet sobering conclusion that Tatarigami, the founder of the Ukrainian Frontelligence Insight analysis group, reached in a recent investigation.

It's not enough for Ukrainian forces to shoot down or otherwise defend against Russian drones, or to fight back with their own drones. To win the drone war, Ukraine and its allies must "step up pressure on Chinese manufacturers," Tatarigami wrote.

As the drone war over Ukraine ramped up in 2022 and 2023, most Russian FPVs were wireless models. And most heavier one-way attack drones navigated via satellite. Both classes of drone could be jammed. A cottage industry of Ukrainian electronic warfare producers sprung up. Each firm offered some variation of a radio noisemaker that can ground or misdirect wireless and satellite-guided drones.

The jamming worked. Combined with kinetic defenses—guns and missiles—and add-on protections such as mesh, cages and netting, the jamming blunted the impact of Russia's drone arsenal. But the Russians adapted. The turning point came in the spring of 2025, when Russia's elite Rubicon Center drone group led the counterattack against Ukrainian troops occupying parts of Kursk Oblast in western Russia.

Rubicon's fiber optic FPVs wreaked havoc on Ukrainian forces in the Kursk salient, damaging or destroying hundreds of trucks and other vehicles in the span of a few weeks. Starving for supplies and in danger of being cut off, the Ukrainians retreated.

But the Russian adaptation was just beginning. The Russians are now launching 10,000 FPVs a day. And in certain key sectors, 60% of the FPVs were fiber optic models, according to Tatarigami. The Ukrainians can shoot down these drones and block them with armor, nets and earthworks. They can also strike at the Russian FPV teams before the Russians can launch their FPVs.

But there's one thing the Ukrainians can't do: they can't jam the drones.

Unjammable drones

Jamming continued to work against many one-way attack drones that must travel hundreds or even thousands of kilometers—too far for optical fiber. Another turning point came in February, when Elon Musk's Starlink bricked Russia's thousands of smuggled and stolen satellite terminals, some of which Russian forces used to control the approximately 5,000 Geran attack drones they launch every month.

The Starlink shutdown compelled Russian developers to accelerate the transformation of the one-way attack drone force. "Russia's second adaptation was mesh networking, routing data through mesh modems to keep communications alive across both short and long-range drones," Tatarigami explained.

It's possible to jam a mesh radio network, but it's hard. Every drone in a given network is a node. It's not enough to jam a few of them; you have to jam all of them.

If there's a constraint on Russia's switch to fiber optics and mesh networks, it's that Russian industry can't produce all the necessary hardware. "Unable to meet domestic demand, Russia turned to China," Tatarigami wrote.

The Washington Post reported Chinese optical fiber shipments to Russia growing from 119,000 miles in May 2025 to 328,000 miles that August. China sent Ukraine 72 miles the same month. For mesh networking, the Russians came to depend on XK-F358 modems from China's Shenzhen Xingkai Technology.

Ukraine's overstretched air defenses can't shoot down every Russian attack drone. Ukrainian troops and vehicle crews can't hide from 10,000 Russian FPVs a day. To defeat Russia's jam-proof drones, Ukraine and its allies must cut off the supply of Chinese parts, Tatarigami stressed.

They should extend export controls to modem-makers and producers of optical fiber, reels for the fiber and equipment associated with fiber production. "The recommendation is to expand sanctions beyond individual firms to the entire supply chain," Tatarigami advised.

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Estonia will use part of a new European Union loan to arm Ukraine with drones, drawing on a loan worth up to €2.34 billion, according to ERR. The loan will also rebuild its own air defense and ammunition stocks, and all of it must be spent by 2030.

As Moscow continues its all-out war in Ukraine, the EU's northeast is rearming fast, bracing for a Russia that regional military chiefs expect to be combat-ready again within two years.

What the loan buys

Estonia signed the financing deal with the European Commission under SAFE (Security Action for Europe), a €150 billion EU program that raises money jointly on the markets and lends it to member states on cheap terms to fast-track defense spending, its finance ministry said.

A share of Estonia's up-to-€2.34 billion will go to Ukraine as drones. The rest strengthens air defense, buys military vehicles, and refills artillery shells and other ammunition. The credit runs 45 years, and every purchase and delivery must be finished by 2030. Estonia filed its final application in November 2025.

Why the loan helps

Borrowing through SAFE lets Estonia raise money on better terms than it could alone, because the EU issues debt at lower rates. The bloc raises the money jointly and splits it among members. Estonia will hold defense spending above 5% of GDP, and the loan eases the strain that puts on its budget.

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Estonia, a NATO and EU state of about 1.3 million people, shares a 294-kilometer border with Russia and treats Moscow's war on Ukraine as a direct threat to its own security. It has studied that war closely for years and is now racing to rebuild its air defenses and ammunition stocks.

Kadri Peters, a deputy secretary general at Estonia's Defense Ministry, said the fast-changing security situation in Europe demands stronger, quicker defense from the whole alliance. She said large-scale purchases ahead will directly affect Estonia's security and the wider region.

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In July, Estonia and the United States agreed to resume weapons deliveries in the coming months, after a pause tied to the war in Iran, with long-range ATACMS ballistic missiles the exception. In May, Washington had warned European allies of long delays as it drained its own stocks, mainly of HIMARS rocket ammunition and NASAMS air-defense missiles. The same shortages hit Ukraine the hardest: it currently struggles to shoot down Russian ballistic missiles for lack of US-made PAC-3 interceptors.

Estonia has been backing Kyiv since the beginning of Russia's full-scale invasion in 2022. It co-leads an IT coalition that has funneled over €1.4 billion into Ukraine's drone programs, and has moved to tap Kyiv's battlefield-tested drone technology for its own forces.

Ukrainian drones struck one of Russia's five largest oil refineries in Yaroslavl on the morning of 6 August, setting off several fires across the site, monitoring channels reported. Open-source analysts placed the blazes on the refinery grounds, while the region's governor claimed his air defenses downed the entire raid. The strike continued a months-long campaign that has pushed Russian oil refining to its lowest level in more than two decades.

Fires break out across the refinery

Ukrainian monitoring Telegram channel Exilenova+ first reported the attack around 4:00, later sharing footage that showed thick black smoke rising from several points on the site. Fire Point, the Ukrainian company that builds the FP-1 long-range drone, said Ukraine's Defense Forces hit the plant with the domestically made FP-1s. Open-source analysts geolocated one blaze to the refinery grounds. Astra, a Russian news Telegram channel, reported one fire on the plant's territory and a second it had not yet located.

One of Russia's biggest refineries

Slavneft-YANOS, also called the Novo-Yaroslavl refinery, ranks among Russia's five largest and is the biggest in the country's central regions. It processes about 15 million tonnes of crude a year into gasoline, diesel, aviation kerosene, jet fuel, lubricants, and bitumen. Rosneft and Gazprom jointly control 99.7% of its parent company, Slavneft. The plant's fuel feeds central Russian industry, airports, the Northern Railway, and military sites. It sits more than 700 kilometers from Ukraine's border.

Russia claims it downed every drone in the region

Yaroslavl Governor Mikhail Yevraev first reported the region was under drone attack around 3:00 and closed the highway toward Moscow. He later claimed the region had repelled its most massive drone raid, downing all 88 drones with no casualties. Yevraev stated that a detached house burned, windows were shattered in several apartment blocks, and residents' cars were damaged. 

Russia's Defense Ministry claimed it destroyed 605 drones over several regions overnight.

The plant has burned repeatedly in 2026, catching fire on 28 March, 26 April, 8 and 22 May, and 6 and 16 July before the latest hit. That made 6 August the seventh strike on the refinery this year. In the 16 July attack, an FP-1 struck the plant's tank farm.

Russia's refining in retreat

Ukraine has sharply expanded its FP-1 deep strikes on refineries this year, knocking out around 26 plants. By late July, only eight had fully restarted and at least 11 partly. Seven refineries stayed idle. Russian refining fell to 3.6 million barrels a day, its lowest since May 2002. 

Earlier, Moscow banned fuel exports, boosted gasoline imports from Belarus 25-fold, and turned to India and Morocco. It also let refiners sell Euro-2 gasoline, a grade banned in Russia since 2013, through 1 July 2027.

Russia's escalating strikes made July the deadliest month for Ukrainian civilians in more than three years. More civilians were killed in Ukraine in July than in any month since April 2022, driven by intensified Russian attacks using ballistic missiles and long-range drones, the UN human rights office in Ukraine reports.

The record is the human cost of a shortage of interceptors for ballistic missiles amid the US war with Iran. However, Ukrainian President Volodymyr Zelenskyy has said the cut in interceptor supplies from partners may be a political attempt to make Ukraine more compliant, a claim he made after the same overnight attack that killed at least 17 civilians, mainly in Kyiv and the surrounding region.

The month's toll came from strikes on cities

The July deaths clustered around attacks on populated areas. Beyond the Kyiv strike, air and drone attacks hit Kramatorsk, Kherson, and Zaporizhzhia, killing and wounding dozens and destroying homes, schools, public transport, water systems, and humanitarian warehouses, according to the UN.

The targets read as the fabric of civilian life. Water systems, schools, and aid depots are not military objects, and their destruction alongside the deaths is what the UN monitoring mission records when it documents the effect of Russia's long-range strikes on the civilian population.

The half-year figures show a steep climb

The July record sits atop a sharply rising trend. In the first half of 2026, the UN monitoring mission confirmed 1,396 Ukrainian civilians killed and 7,978 wounded.

Those numbers are climbing fast. The first-half toll is 37% higher than the same period in 2025 and 114% higher than the year before, as Russia intensifies its long-range strikes. Civilian deaths have more than doubled in two years, a direct measure of what the shift to massed ballistic and jet-powered drone attacks has done to the people beneath them.

Russia reported its own civilian deaths

The UN also noted casualties on the Russian side. According to Russian local authorities, Ukrainian long-range drone retaliation strikes on several Russian cities this week reportedly killed at least 12 people.

The scale is asymmetric and the cause singular: it is Russia's war on Ukraine, and its intensifying strikes on Ukrainian cities, that made July the deadliest month for civilians since the war's first spring.