Russian Military Thrust Tests Key Ukrainian Frontline

Ukraine’s military has played down the scale of the advance while sending additional troops to the Donetsk frontline, saying the situation has stabilized.
Published: 8/15/2025, 4:27:38 PM EDT
Russian Military Thrust Tests Key Ukrainian Frontline
A ruined city center in Kostyantynivka in Donetsk on April 19, 2025. (Iryna Rybakova/Ukraine's 93rd Mechanized Brigade via AP)

This week, the world’s attention was focused largely on the landmark summit between President Donald Trump and his Russian counterpart, Vladimir Putin, in Alaska.

But preparations for the event have coincided with significant military developments in Donetsk, where Russian forces this week staged a sudden thrust several miles into Ukrainian-held territory.

While Ukrainian officials say the situation has stabilized, the Russian advance has prompted fears of a potential collapse of Kyiv’s defense lines.

“The front hasn’t collapsed, but the risk is high,” Abdullah Agar, a prominent Turkish military analyst and former Special Forces officer, told The Epoch Times.

“A breakthrough has been prevented for now, but the [Ukrainian] lines are under extreme strain,” he said.

British defense analyst Tim Ripley said it was “too soon to say” whether Ukraine’s defense line was buckling under the pressure.

But recent developments suggest a “growing trend of increasing porousness along the [Ukrainian] frontline,” he told The Epoch Times.

“The Russians aren’t using mass tank or vehicle attacks,” Ripley said. “They’re sending small groups of soldiers to dodge past Ukrainian positions.

“The Ukrainians, fearing they’ll be trapped in their trenches, just withdraw—they are unhinging defensive positions.”

On Aug. 12, Ukrainian President Volodymyr Zelenskyy confirmed that Russian forces had advanced several miles towards the town of Dobropillia, which sits some 14 miles north of the town of Pokrovsk.

Of enormous strategic importance, Pokrovsk is a vital Ukrainian transit hub, the capture of which has long been a key Russian objective.

“Losing Pokrovsk would make defending key cities like Sloviansk and Kramatorsk much harder,” Agar said.

“If Russia cuts the supply route from Dobropillia to Kramatorsk, Ukraine’s defense would face severe problems in terms of morale, resources, reinforcements, and evacuations, creating serious operational setbacks.”

According to Ripley, there are “four encirclement operations underway along the Donetsk-Luhansk frontline; four bulges the Russians are trying to squeeze.”

“They’re putting quite a lot of resources into it, and they seem to be having some success,” said Ripley.

Raising Alarm Bells

On Aug. 11, DeepState, a Ukrainian blog that tracks military developments, said that Russian forces, “through constant pressure and with superior troop numbers,” had advanced on two settlements near Dobropillia.
“The enemy … is following up on its successes in the direction of the Dobropillia-Kramatorsk highway,” DeepState reported on its Telegram channel.

The frontline situation, it said, “is developing quite chaotically, because the enemy, having found gaps in defenses, is infiltrating deep into the area.”

On Aug. 13, Russia’s defense ministry said its forces had “liberated” two settlements—Suvorovo and Nikanorivka—less than 10 miles from Dobropillia.
On the same day, Denis Pushilin, head of the Moscow-recognized Donetsk People’s Republic, said in remarks cited by the TASS news agency that Ukrainian troops in the area were now falling back to less well-fortified positions.

Ukraine’s military has played down the scale of the Russian advance while sending additional troops to the Donetsk frontline, including units from its Azov Battalion.

On Aug. 14, Vadym Filashkin, Donetsk’s Kyiv-appointed regional governor, said the reinforcements had managed to halt the Russian advance.

“The situation in the Dobropillia sector has stabilized,” he wrote on Telegram. “Thanks to the heroic efforts of our Defense Forces, the frontline is … holding.”

Andriy Kovalev, a spokesman for the Ukrainian military’s General Staff, echoed Filashkin’s assertion, telling the Interfax Ukraine news agency on Aug. 14 that Azov fighters were inflicting “significant losses” on the “Russian invaders.”
Nevertheless, on Aug. 15, Kyiv’s official news agency Ukrinform reported that Filashkin had ordered civilian evacuations from the Donetsk city of Druzhkivka and four nearby villages.

“The most interesting combat indicator is the evacuation order,” Ripley said. “The fact that they’re ordering civilians to evacuate suggests they are worried.”

Earlier this week, Bohdan Krotevych, former chief-of-staff of the Azov Battalion, issued a dire warning about the depleted state of the Donetsk frontline.

In a social media post addressed to Zelenskyy, Krotevych said the Pokrovsk-Konstantynivka defense line was in “total chaos” and was “getting worse every day.”

“A stable line of combat contact effectively doesn’t exist,” he wrote on social media platform X on Aug. 11.

“Pokrovsk and [the nearby town of] Myrnohrad are almost surrounded,” he said. “Kostyantynivka is semi-encircled. The enemy is advancing towards Kramatorsk and Druzhkivka.”

According to Agar, Krotevych’s claims “perfectly sum up the uncertainty on the front and the stop-gap measures, shifting positions, and flexible defense that have become necessary.”

“With the precautions Ukraine has taken, the reinforcements it has sent, and the forces it has committed, the fight at this critical pressure point has taken on a new form—what I call ‘flexible defense’,” he said.

Speaking to the Associated Press on Aug. 13, Serhii Filimonov, a Ukrainian battalion commander, said that if Russian forces capture Pokrovsk, “they will cut off logistics in Druzhkivka, Kramatorsk, Sloviansk, and Kostyantynivka.”

“Kostyantynivka can fall without a fight if they [the Russians] manage to do it. They will simply cut off logistics,” he said. “Further north from the Lyman side, they are trying to cut off Sloviansk in the same way.”

Agar said that Ukraine—and its allies—were “fully aware” of what a Russian breakthrough would mean for the wider frontline.

“That’s why they will almost certainly try to develop new measures,” he said. “If they don’t, or can’t, the military and political environment—and overall strategic posture—will have to adjust to this [frontline] rupture.”

Ukrainian soldiers fix a bomb on a Vampire drone on the Donetsk frontline on March 31, 2025, (Oleg Petrasiuk/Ukraine's 24th Mechanized Brigade via AP)
Ukrainian soldiers fix a bomb on a Vampire drone on the Donetsk frontline on March 31, 2025, Oleg Petrasiuk/Ukraine's 24th Mechanized Brigade via AP

‘Fluid Conflict’

Ripley described the situation in and around Pokrovsk as “very precarious.”

“The first breakthrough occurred to the south, and they [Russian forces] now appear to be inside the city,” he said. “And you now have a breakthrough northeast of the city, which is going directly north.”

“The one going north, which took place on Monday, has cut two main roads, prompting the evacuation orders,” he added. “That puts the Russians in a position to strike at Sloviansk and Kramatorsk—the last two holdouts in Donetsk.”

Agar believes that, ultimately, “the outcome will hinge on the ability of Ukraine and its allies to restore a balance on the frontline and Russia’s ability to exploit its successes.”

“This is a fluid conflict shaped not only by what happens on the ground, but by larger outside forces,” he said. “NATO support, a potential Russian misstep, the results of negotiations … or even an effective threat from Trump could all become decisive factors.”

“The West’s goal is to pressure Russia—through war and sanctions—to the point where they can reshape it into something they want,” Agar said. “Some believe they’re very close to getting there.”

“Ukraine faces serious risks, but so does Russia. This is, at its core, a war of endurance.”

Reuters and The Associated Press contributed to this report.