• Elon Musk has accused Ukrainian forces of using commercial Starlink in drone strikes.
• But two Ukrainian drone figures say the claim is impossible because of limits imposed on the terminals.
• It comes after Ukraine was hit by a 10-day slowdown on Starshield, the military version of Starlink.

Ukraine said its access to Starshield was restored this weekend, but Elon Musk isn't finished with Kyiv yet.

In an X post on Sunday, Musk accused Ukrainian forces of breaching Starlink's terms of service by using the civilian platform in drone attacks.

"Ukraine military violated Starlink terms of service and used it for offensive drone strikes to kill people. That loophole was closed last week," wrote the SpaceX owner.

"Using Starlink, a civilian commercial service, for offensive drone strikes to kill people has never been allowed, nor should it be," he added.

Musk made it clear he was talking about the commercial platform and not Starshield, the military version of the satellite communications service owned and controlled by the US government.

"Were Starlink to be turned off, the Ukrainian front line would collapse immediately. This is NOT a threat, it is simply a statement of fact," Musk added.

Ukrainian drone advisors hit back

Two prominent Ukrainian drone figures, however, disputed Musk's statement, saying that it was technically impossible for any of Kyiv's troops to have independently used Starlink in drone strikes.

"As someone who was inside the process at the Ministry of Defense, I can say for sure that this is not true," wrote Serhii Sternenko, a former advisor for drones to Ukraine's defense ministry, on his Telegram channel.

"It is very strange that Elon Musk does not know about the restrictions on Starlink operation in Ukraine," wrote Serhii "Flash" Beskrestnov, another former advisor.

Both worked in the ministry in early 2026, when it negotiated with SpaceX to prevent Russia from using black-market Starlink terminals in the war. SpaceX agreed in February to block Starlink over Ukraine and Russia, allowing access only to whitelisted Ukrainian terminals.

Sternenko said that Ukrainian civilians and troops could register their terminals on the whitelist, but that these would only work while subject to a speed requirement.

For one to connect while moving, it would have to be put on a special list that uses Starshield instead, he said.

"That is, it was technically impossible to use civilian Starlink to perform missions on drones. All drone missions that required satellite communication could only be carried out using Starshield," Sternenko added.

Beskrestnov said the Ukrainian Starlink terminals were subject to a speed limit of 90 kmph, or about 55 mph. The civilian service is also completely cut off over Russia, he added.

"Thus, we physically cannot use commercial Starlink for deep strikes and middle strikes," Beskrestnov wrote.

Starshield vs Starlink

Tactical drones operating on the Ukrainian battlefield at speeds below 55 mph, such as first-person-view attack drones, typically use radio-frequency signals rather than satellite communication to maintain contact with an operator. These are also often too small and lack enough onboard power to reliably carry even a Starlink Mini terminal.

What Ukraine usually uses satellite internet for — hence its reliance on Starshield — is mid-range and deep strikes on Russia's rear or Russian territory, with larger, more powerful drones that fly much faster.

Kyiv also relies on satellite communications for its small interceptor drones, which fly at up to 265 mph to catch incoming attack drones.

Musk followed up on his Sunday X post with a screenshot of Ukrainian President Volodymyr Zelenskyy writing on social media in mid-October that Kyiv's forces "also use Starlink for mid-range strikes" against Russian targets.

However, Zelenskyy's post was describing Ukraine's recent troubles with Starshield, and he repeatedly used the term "Starlink" to refer broadly to the military satellite service instead.

Musk and SpaceX did not respond to requests for comment sent outside regular business hours by Business Insider.

Earlier this month, Ukraine raised the alarm that its access to Starshield was being throttled at high speeds, reducing its ability to conduct deeper strikes and to control interceptor drones.

The crisis lasted 10 days and came as President Donald Trump and Musk openly criticized Ukraine for targeting Russian oil facilities at a time when the White House was trying to ease fuel prices.

The Wall Street Journal reported, citing unnamed US officials and sources, that Musk had personally ordered the speed cap. Musk and Trump have separately said they were not responsible for the slowdown.

On Saturday, Zelenskyy said Starshield services were running normally again.

• Russia looks to be moving toward 3D printed cruise missiles for its next era of air attacks on Ukraine.
• The threat could be so major, turbojet Shaheds would seem like a small problem, one drone guru said.
• GUR recently posted details of the Filin, a cheap Russian missile reported to fly as fast as 500 mph.

Russia's next big bet in the air war will likely move past jet-powered Shaheds to a deep arsenal of new cruise missiles, two of Ukraine's most prominent drone experts warned on Thursday.

Serhii "Flash" Beskrestnov and Serhii Sternenko wrote separately on their Telegram channels about the Filin, an 11-foot Russian winged cruise missile that Ukraine's military intelligence service recently unveiled.

These cheap weapons possess superior capabilities that would easily overshadow the threat posed by the Shahed, according to the pair, both former drone advisors to Ukraine's defense ministry.

"The mass use of this type of aerial attack weapon is what awaits us very soon," wrote Sternenko, who runs a major foundation that crowdfunds for Ukraine's military, in a Telegram post.

"Then we will remember the jet Shaheds only as a small problem compared to this," he added.

Beskrestnov, a drone analyst, said he had "long predicted that our adversary is betting on cheap cruise missiles for the future, not on jet Shaheds."

He wrote on his Telegram channel that the Filin can fly faster, maneuver better, and carry a heavier payload than Russia's current turbojet drones,

"They do not need drone ports, many of them can be launched from helicopters and UAVs. And most importantly, they can be produced from Russian components," Beskrestnov added.

A strike at nearly 500 mph for cheap

On Wednesday, Ukraine's military intelligence agency, GUR, released extensive details on the Filin, which it said Russia had begun deploying at the end of summer 2026.

The Filin, it said, is the "continuation of the trend of the Russian military-industrial complex to develop inexpensive air attack weapons with jet propulsion and ground launch."

The ground-launched missile can carry a 100kg warhead, and Russia has said that it can fly at speeds of almost 500 mph at a range of 745 miles. By comparison, the Kremlin's most advanced jet-powered drone deployed so far, the Geran-5, is known to fly at a maximum speed of 370 mph.

The Filin can also fly at "ultra-low altitudes" and as high as 3.7 miles, GUR said.

Similar to Russia's Shahed drones, the Filin features a carbon and fiberglass fuselage, with some of its parts produced via 3D printing, the intelligence service added.

And as with turbojet Shaheds, GUR also said that the Filin is filled with foreign electronics in its flight controller, inertial navigation system, equipment control unit, and counter-jamming hardware.

The agency listed 35 components from the US, including transistors and converters; 22 from China; and 13 more from Japan, Switzerland, Taiwan, and the Netherlands.

Notably, GUR said the Filin's engine is Russian-made, compared to the Chinese engines used on many of Moscow's turbojet drones. The same engine has been found on other recently unveiled Russian missiles, such as the air-launched Kover and Monochrome.

Much of Russia's ability to reduce the cost of its new cruise missiles is owed to its use of commercial engines and components. Another high-profile Russian missile that also uses civilian tech is the Banderol, which emerged in the spring of 2025 and has been straining Ukraine's air defense networks in the last few months.

The Banderol flies more slowly and has a shorter range than the Filin, but it still reaches a max speed of 435 mph, making it much harder for Ukraine to intercept with drones. Its estimated price is $150,000 per unit — about a sixteenth the cost of a traditional Kh-101 cruise missile — so it's easier to mass-produce.

The frequent use of weapons like the Banderol over the summer has led to fears that Russia will lean into its tactic, often nicknamed "missile spam," to keep pushing Ukrainian air defenses.

"What is the Air Force command doing now to build up countermeasures in advance?" Sternenko wrote on Wednesday about the missile threat.