A gaggle of fighters aligned with Ukraine, who had participated earlier this week in essentially the most intense preventing inside Russia’s borders for the reason that invasion, gathered the overseas and native press in an undisclosed location on Wednesday to have a good time, to taunt the Kremlin and to indicate off what they referred to as “army trophies” from their incursion into their fatherland: Russia.

Their chief, Denis Kapustin, was proud that his power of anti-Putin Russians at one level managed, he stated, 42 sq. kilometers, or 16 sq. miles, of Russian territory.

“I need to show that it’s doable to combat in opposition to a tyrant,” he stated. “That Putin’s energy shouldn’t be limitless, that the safety companies can beat, management and torture the unarmed. However as quickly as they meet a full armed resistance, they flee.”

It was the rhetoric of a dissident freedom fighter, however there was a discordant notice that emerged as clearly because the neo-Nazi Black Solar patch on the uniform of one of many troopers: Mr. Kapustin and distinguished members of the armed group he leads, the Russian Volunteer Corps, overtly espouse far-right views. The truth is, German officers and humanitarian teams, together with the Anti-Defamation League, have recognized Mr. Kapustin as a neo-Nazi.

Mr. Kapustin, who has lengthy used the alias Denis Nikitin however usually goes by his army name signal, White Rex, is a Russian citizen who moved to Germany within the early 2000s. He related to a gaggle of violent soccer followers and later grew to become, “one of the crucial influential activists” in a neo-Nazi splinter group within the mixed-martial-arts scene, officers within the German state of North Rhine-Westphalia have stated.

Mr. Kapustin has reportedly been banned from coming into Europe’s visa-free, 27-country Schengen zone, however he has stated solely that Germany canceled his residency allow.

The truth that the group has garnered consideration for its operation and revived protection of the group’s ties to neo-Nazis is an ungainly growth for Ukraine’s authorities, significantly since President Vladimir V. Putin of Russia has justified his invasion on the false declare of preventing neo-Nazis and made it an everyday theme of Kremlin propaganda.

A lot of the anti-Russian teams harbor long-term political ambitions to return residence and overthrow the Russian and Belarusian governments.

“The Russian Volunteer Corps marches in and destroys the present authorities — that’s the one approach,” Mr. Kapustin stated earlier this 12 months. “You can not persuade a tyrant to go away, and some other power can be seen as invaders.”

In actuality, far proper teams in Ukraine are a small minority, and Ukraine has denied any involvement within the Russian Volunteer Corps or any function in preventing on the Russian aspect of the border. However Mr. Kapustin stated that his group “undoubtedly obtained a variety of encouragement” from the Ukrainian authorities.

Some on the far proper in Russia way back soured on Mr. Putin, significantly for his jailing of so many nationalists, but additionally for his insurance policies on immigration and for what they understand as granting an excessive amount of energy to minorities like ethnic Chechens. Because the 2014 Maidan revolution and the onset of warfare between Ukraine and Russian-backed separatists within the japanese Donbas area, a lot of them have made a house in Ukraine and are actually preventing on the aspect of their adopted nation.

The Russian Volunteer Corps, additionally recognized by its Russian initials R.D.Okay., was one among two teams of anti-Russian fighters that carried out a cross-border assault within the Belgorod area of southern Russia on Monday, participating enemy troops over two days of skirmishing.

The intention of the incursions, the teams say, was to power Moscow to redeploy troopers from occupied areas of Ukraine to defend its borders, stretching its defenses forward of a deliberate Ukrainian counteroffensive, a aim which aligns with the broader targets of Ukraine’s army.

The Russian Volunteer Corps additionally claimed credit score for 2 incidents within the Russian border area of Bryansk in March and April.

The second group was the Free Russia Legion, which operates underneath the umbrella of Ukraine’s Worldwide Legion, a power that features American and British volunteers, in addition to Belarusians, Georgians and others. It’s overseen by Ukraine’s Armed Forces and commanded by Ukrainian officers.

On the information convention on Wednesday, Mr. Kapustin affirmed that his group was not managed by the Ukrainian Military, however stated that the army had wished the fighters “good luck.” There had been “nothing additional than encouragement” from the Ukrainian half, he stated.

“All the pieces we do, each determination we make, past the state border is our personal determination what we do. Clearly we will ask our comrades and mates for his or her help in planning,” he continued. “They’d say ‘sure, no’ and that is the sort of encouragement, assist I used to be speaking about.” That declare couldn’t be independently verified.

Andriy Chernyak, a consultant of Ukraine’s army intelligence service, defended Kyiv’s willingness to permit the group to combat on its behalf.

“Ukraine undoubtedly helps all those that are able to combat the Putin regime,” he stated, including: “Folks got here to Ukraine and stated that they need to assist us to combat Putin’s regime, so after all we allow them to, similar as many different folks from overseas international locations.”

Ukraine has referred to as the incursions an “inner Russian disaster” provided that the members of the group are Russians themselves.

Some analysts dismissed the importance of the R.D.Okay. as a preventing power at the same time as they warn of the hazards they pose. Michael Colborne, a researcher at Bellingcat who experiences on the worldwide far proper, stated he was hesitant even to name the Russian Volunteer Corps a army unit.

“They’re largely a far-right group of neo-Nazi exiles who’re endeavor these incursions into Russian-held territory who appear way more involved about making social media content material than anything,” Mr. Colborne stated.

Another members of the R.D.Okay. photographed in the course of the border raid even have publicly embraced neo-Nazi views. One man, Aleksandr Skachkov, was arrested by the Ukrainian Safety Companies in 2020 for promoting a Russian translation of the white supremacist manifesto of the shooter in Christchurch, New Zealand, who killed 51 mosque worshipers in 2019. Mr. Skachkov was launched on bail after spending a month in jail.

One other member, Aleksei Levkin, who filmed a selfie video carrying the R.D.Okay. insignia, is a founding father of a gaggle referred to as Wotanjugend that began in Russia however later moved to Ukraine. Mr. Levkin additionally organizes a “Nationwide Socialist Black Metallic Pageant,” which started in Moscow in 2012 however was held in Kyiv from 2014 till 2019.

Footage posted on-line by the fighters earlier this week confirmed them posing in entrance of captured Russian gear, with some carrying Nazi-style patches and gear. One patch depicted a hooded member of the Ku Klux Klan.

Mr. Colborne stated the photographs of Mr. Kapustin and his fighters might harm Ukraine’s protection by making allies cautious they might be supporting far-right armed teams.

“I fear that one thing like this might backfire on Ukraine as a result of these aren’t ambiguous folks,” he stated. “These aren’t unknown folks, and they don’t seem to be serving to Ukraine in any sensible sense.”

Mr. Kapustin, who along with talking Russian speaks fluent English and German, advised reporters he didn’t assume being referred to as “far proper” was an “accusation.”

“We now have by no means hid our views,” he stated. “We’re a proper, conservative, army, semipolitical group,” he stated.

Thomas Gibbons-Neff, Andrew E. Kramer and Oleg Matsnev contributed reporting.