Russian Major General Anton Grunis, the commander who told Russian President Vladimir Putin that Russian forces had fully captured Kostiantynivka despite Ukrainian troops still defending the city, has been killed in the war against Ukraine, according to Russian media reports.

Grunis was awarded the Hero of Russia title just weeks before his death, after commanding Russian forces on the Kostiantynivka front. He had reported the city’s supposed capture to Putin in July, even as Ukrainian forces continued to hold positions there.

Robert “Madyar” Brovdi, commander of Ukraine’s Unmanned Systems Forces (SBS), confirmed Grunis’s death on 16 September, saying Ukrainian forces killed the general on 12 September in occupied Donetsk Oblast.

Madyar said the operation was carried out by the “Rarog” unit of Ukraine’s 427th Separate Regiment of Unmanned Systems. 

Several Russian sources have also confirmed Grunis’s death, according to Ukrainska Pravda and RBC-Ukraine.

Madyar said Grunis is the seventh confirmed Russian commander at the brigade, division, or army level killed by Ukraine’s SBS “Birds” units.

The general who declared Kostiantynivka captured

Grunis commanded Russia’s 4th Separate Guards Motor Rifle Brigade, which has been fighting on the Kostiantynivka front, according to Ukrainska Pravda.

In July, Grunis personally reported to Putin that Russian forces had supposedly fully captured Kostiantynivka. Russia’s Chief of the General Staff Valery Gerasimov made a similar claim.

Ukraine rejected the announcement, saying its troops were still conducting defensive operations inside the city. Kostiantynivka remains contested as of 16 September.

RBC-Ukraine reported that Russian troops have entered parts of the city, but Ukrainian forces continue to hold positions in its southern, central, and northern areas. Ukraine’s General Staff reported 18 Russian attacks on the Kostiantynivka axis over the previous day.

Kostiantynivka is the southernmost major city in Ukraine’s fortified defensive belt in Donetsk Oblast, with Druzhkivka, Kramatorsk, and Sloviansk farther north. Russia has been trying to capture it since 2025.

Explore further

Kostiantynivka: Why one city in Donbas matters so much that Putin lies about having captured it

Killed weeks after receiving Hero of Russia title

Grunis was awarded Russia’s highest state decoration shortly before his death. On 27 August, Russian Defense Minister Andrei Belousov presented him with the Gold Star of the Hero of the Russian Federation for what Russia described as his “courage and heroism,” according to Ukrainska Pravda.

Grunis graduated from the Kazan Suvorov Military School in 1996 and fought in Chechnya and against Georgia, Ukrainska Pravda reported. He retired from active service in 2021 but returned to the Russian military after the start of the full-scale invasion.

The 4th Separate Guards Motor Rifle Brigade was formed in 2014 from Russian-backed armed formations in occupied Luhansk, including the Prizrak group, before being integrated into Russia’s regular military structure, according to Ukrainska Pravda.

Russian losses reached one of the highest of the entire full-scale war in August, Ukraine's Defense Ministry says, citing General Staff data. Last month, Ukraine killed or wounded 42,020 invaders.

As its frontline losses climb, Russia is escalating its terror against Ukraine's civilians. Moscow uses large numbers of ballistic missiles and new jet-powered drones to do it. Russia opened its latest drone assault on 27 August, two days after CIA director John Ratcliffe arrived in Moscow, and has kept it up since.

For comparison, Russia lost 42,860 soldiers in July, 33,760 in May, and 39,290 in June, the ministry says.

Ukraine takes another step toward its goal

Ukraine's Defense Ministry states that effectively destroying Russian manpower and logistics is among its priorities, so that Russia's losses reach a level that forces it to abandon its plans of conquest.

"August's losses for the Russian army were another step toward reaching that goal," the Defense Ministry says.

Ukraine began its logistics lockdown late this May. It is a coordinated campaign to scale up medium-range drone strikes against Russian supply convoys, depots, command nodes, and air-defense systems 20 to 200 kilometers behind the front.

Russia loses more than men

Ukraine's Defense Forces also struck 13,835 vehicles and fuel tankers in August.

Over the month they hit an estimated:

• 89 tanks;
• 197 armored combat vehicles.
• On top of that, 1,827 Russian artillery systems were destroyed or disabled.

"Inflicting such losses systematically raises the cost of continuing the war for Russia and forces it to spend ever more resources replacing manpower, equipment, and weapons," the ministry says.

How does Russia answer the losses?

Ukraine's Office of the President has said Russia is preparing an additional mobilization wave in 2026–2027, aiming to draft 300,000 people this year and 300,000 next. Those figures are a response to the steady rise in frontline losses, the office adds.

Meanwhile, Russian President Vladimir Putin called that information "nonsense" after the Shanghai Cooperation Organization summit in Bishkek.

At the same time, legal-aid organizations report a covert mobilization across Russia's regions and occupied territories. Over the past month and a half, residents of at least 17 Russian regions have complained of forcible detention, beatings, and coercion into signing contracts with the Russian Defense Ministry.