Anton Grunis Killed: Ukraine's Drones Reach the General Who Told Putin Kostiantynivka Fell

Major General Anton Grunis was killed on September 12 in occupied Donetsk Oblast, and it took four days for anyone to say it out loud. On September 16, the commander of Ukraine's Unmanned Systems Forces, Robert Brovdi, call sign Madyar, ended the guessing: "The general Grunis was eliminated on Sept. 12, 2026, in his nighttime lair in the temporarily occupied territory of Donetsk Oblast." The strike, Brovdi said, was the work of the 427th Rarog regiment, one of the USF's dedicated deep-strike units, and there is video of the command post going up.

This was not a lucky hit on a staff car. It was a located, watched, and serviced target. And the man inside had just spent the summer being decorated for a victory that does not exist.

Anton Grunis: From Retirement to the Bakhmut Meat Grinder

Grunis commanded the 4th Separate Guards Motor Rifle Brigade, military unit 40318, a formation that started the full-scale war under the 2nd Army Corps and was folded into the new 3rd Guards Combined Arms Army of Russia's Southern Military District, per Militarnyi. A Kazan Suvorov school graduate who fought in Chechnya and Georgia, he retired in 2021 and came back when the invasion needed bodies, according to Euromaidan Press. His call sign, fittingly for a man Putin praised for his Kazan roots, was "Grozny," per United24 Media.

His brigade's war maps the ugliest stretch of the Donbas: Toshkivka and Hirske in Luhansk in 2022, then the long grind through the Bakhmut sector, Chasiv Yar, and finally the approaches to Kostiantynivka, per Militarnyi. Word of his death first leaked on September 15 through the Suvorovskoye Bratstvo alumni Telegram channel, which said only that he died "under unknown circumstances." By the next day, Lieutenant General Apti Alaudinov had confirmed the death to TASS, saying Grunis "died a hero, having fulfilled his sacred duty to the end." Brovdi supplied the circumstances Alaudinov left out.

The Kostiantynivka Lie That Made Him a Hero

Photo: State Border Guard Service via ArmyInform, CC BY 4.0

Here is what made Grunis more than another brigade commander. In July, as Russia's Defense Ministry announced the full capture of Kostiantynivka and Chief of the General Staff Valery Gerasimov repeated the claim to Putin, Grunis personally reported the city's fall up the chain, per Meduza. Putin was pleased enough to single him out: "A man with a Lithuanian surname, born in Kazan, who fights brilliantly."

The problem is that Kostiantynivka had not fallen. Ukraine rejected the claim immediately, Zelensky dismissed it publicly as another Russian story for the news cycle, and as of this week Ukrainian troops are still fighting inside the city, holding positions in its southern, central, and northern districts, per Euromaidan Press. The "captured" city has now been contested for two and a half months since the announcement.

None of that stopped the reward. On August 27, Defense Minister Andrei Belousov presented Grunis the Gold Star of the Hero of the Russian Federation, per Euromaidan Press. Sixteen days later, the drones found his command post. There is a very Soviet arc to it: report the victory the boss wants, take the medal, and let the paperwork outlive you.

Seventh on the List: The Birds Are Hunting Command Posts

Photo: ArmyInform, CC BY 4.0

Brovdi says Grunis is the seventh confirmed Russian commander at brigade, division, or army level killed by the USF's "Birds" units. That tally is the real story. Since taking over the Unmanned Systems Forces in June 2025 and standing up a dedicated Deep Strike Centre last December, Brovdi has been turning what began as FPV teams into something that looks like a precision decapitation arm: find the headquarters, watch the routines, strike at night when the principal is home. Calling the target's location a "nighttime lair" is not color, it is a description of pattern-of-life targeting.

The same week's tape shows the wider system at work. On September 14 and 15, the General Staff and the 429th Achilles brigade reported strikes on a drone storage and launch site near occupied Donetsk, three electronic warfare stations and airspace radars in Bryansk Oblast, and a Nebo-M long-range radar near Millerovo airfield, per United24 Media. Blinding radars, burning drone hubs, and killing the officers who run the sector are not separate campaigns. They are one campaign against Russia's command and sensor layer.

Moscow can file this next to the case it opened two weeks ago, when Major General Nikolai Varpakhovich was shot and gravely wounded near Engels. Between gunmen working inside Russia and drones working over the front, senior Russian command is now being attrited by two different methods at once.

The Same Night, the Same War

Photo: ArmyInform, CC BY 4.0

The elimination announcement landed on a violent morning. Overnight into September 16, Ukrainian drones hit the Syzran refinery in Samara Oblast, with direct hits reported on its AVT-6 primary processing unit and tank farm, and struck a drone production facility in Taganrog, per the Kyiv Independent. The refinery campaign is biting: Reuters reported on September 15 that three of Russia's six largest diesel-producing refineries have halted or slashed output, with Kirishi fully down and NORSI and Volgograd running near a quarter of capacity, and those six plants account for half of Russia's diesel production.

Russia answered the only way it currently answers. Around 80 drones overnight, including jet-powered types, killed at least 9 people and injured 36 across Ukraine, per the Kyiv Independent. Five of the dead were on a passenger bus.

Why It Matters

Armies can replace colonels and generals, but they cannot quickly replace the specific commander who knows a sector, and Russia's bench is thinning at exactly the level that turns orders into assaults. More corrosive is the incentive lesson every Russian officer just received: the general who told Putin the lie he wanted got a Gold Star and a drone through the roof within three weeks. Reporting fiction upward is how Russia's system pays its people, and Ukraine is now auditing those fictions with warheads. That gap, between the war Putin is briefed on and the war outside, is where bad Russian decisions come from, and the channel expects Ukraine to keep widening it.

What to Watch

Whether Moscow acknowledges the manner of Grunis's death, and who inherits the 4th Brigade's sector in front of Kostiantynivka. Whether the USF's brigade-and-up tally moves past seven before October, which would confirm command hunting as standing doctrine rather than opportunism. And watch Kostiantynivka itself: if the city Grunis "captured" in July is still contested at the first frost, the lie he was decorated for will have outlived him by months.

The full picture builds daily on the channel at t.me/TheLeaflet, and every morning here in The Daily Sitrep.

Read next: Russian General Shot Near Engels: Three Days After Kyiv Charged Him Over Okhmatdyt and The First Naval Drone Battle: Ukraine's Sargan Sinks a Russian Drone Boat in the Black Sea

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Sources

Ukraine's Unmanned Systems Forces via Robert Brovdi, the Kyiv Independent, Meduza, Militarnyi, United24 Media, Euromaidan Press, Interfax-Ukraine, Reuters, TASS (Russian state claims, treated accordingly).