Russia’s chemical attacks in Ukraine have exceeded 10,000 incidents since February 2023, according to Anton Honchar, chief specialist of the Radiation, Chemical and Biological Defense Directorate of Ukraine’s Armed Forces Support Command. Honchar told Ukrainska Pravda that Russian forces began using chemical weapons against Ukrainians as early as 2014–2015.

Ukrainian mobile teams specializing in chemical detection are now deployed across the front, collecting samples of grenades, contaminated gear, and aerosols. These groups work in close coordination with the Security Service of Ukraine (SBU) and Special Operations Forces. Honchar noted that over the past month alone, Ukrainian teams recorded about 760 instances of chemical weapons use by Russian troops.

Banned toxic grenades lead Russia’s battlefield arsenal

According to Honchar, 88% of Russia’s chemical attacks involve hand grenades such as the RG-Vo and K-51, both of which are banned for combat use under the Chemical Weapons Convention (CWC). These grenades are intended for riot control, not military operations, yet Russia reportedly uses them to flush Ukrainian troops out of trenches and bunkers. Kyiv accuses Moscow of violating Article 1, Clause 5 of the CWC, which prohibits the use of toxic chemicals as weapons against enemy forces.

Another widely documented agent is chloropicrin, once used to test gas masks. Now, it’s being weaponized in improvised explosive devices or loaded into containers and dropped from drones.

Evidence collected for international prosecution

Honchar stressed that Ukraine now has the technical ability to gather battlefield samples according to international forensic standards. The Organization for the Prohibition of Chemical Weapons (OPCW) requires strict procedures to validate evidence in court. Ukraine’s field units adhere to these rules, enabling the country to pursue accountability at both the national and international level.

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Ukraine accuses Russia of continuing to research, produce, and distribute chemical weapons despite claiming to have destroyed its stockpiles in 2018. The OPCW had been told by Moscow that its inventory was eliminated, yet Ukraine says banned agents are being actively used. One case cited by Honchar involved Russian General Kirillov, head of the Russian Radiation, Chemical, and Biological Defense Troops. According to the SBU, he was responsible for supplying banned grenades to frontline units before being eliminated in December 2024.

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Russia’s 155th Naval Infantry Brigade has been identified as one of the units most often using chemical weapons. Kyiv says these attacks are concentrated in combat-heavy directions such as Pokrovsk, Kupiansk, and Lyman, where Russian forces attempt to force Ukrainian troops out of fortified positions.

Honchar said Russian forces prefer to use chemical weapons during spring, summer, and autumn due to better evaporation conditions, and mainly during daylight assaults when their ground offensives are most active.

The United Kingdom has imposed new sanctions on Russian individuals and an organization involved in the use and transfer of chemical weapons in Ukraine, the British government announced on July 7.

According to the updated sanctions list published on the U.K. government's official website, the new measures target Russia's Scientific Research Institute of Applied Chemistry, as well as Lieutenant General Alexei Rtishchev, head of Russia's Radiological, Chemical and Biological Defense Troops, and his deputy, Andrei Marchenko.

The U.K. government said that both of them "have been responsible for, engaging in, providing support for, or promoting prohibited activity related to chemical weapons."

The Scientific Research Institute of Applied Chemistry was sanctioned for providing Russia's military with handheld chemical grenades, which have been used against Ukrainian Armed Forces.

The new British sanctions come amid growing international concern over Russia's escalating use of banned chemical agents in its war against Ukraine.

On July 4, the Netherlands Military Intelligence and Security Service (MIVD) reported that Russian troops are increasingly deploying chemical weapons— including chloropicrin, a highly toxic World War I-era agent, in the field.

The agents are reportedly dropped by drones to flush Ukrainian soldiers from trenches, leaving them exposed to further drone or artillery strikes. While Russia previously used tear gas, the confirmed use of chloropicrin, a substance banned under international law, is "absolutely unacceptable," Dutch Defense Minister Ruben Brekelmans said.

Ukrainian authorities say Russia has conducted more than 9,000 chemical attacks since the full-scale invasion began in 2022. At least three Ukrainian soldiers have reportedly died from direct exposure.

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The Kyiv IndependentLiliane Bivings

Russia is escalating the use of chemical weapons against Ukrainian forces, the Netherlands Military Intelligence (MIVD) reported on July 4.

Russian troops use banned chemical agents as psychological warfare to panic Ukrainian forces, forcing soldiers from dugouts and trenches with gas grenades dropped by drones, making them easy targets for subsequent drone or artillery attacks.

According to MIVD report, it was previously known that Russia usesd tear gas, but now intelligence has confirmed the use of chloropicrin — a substance that can kill in high concentrations in enclosed spaces.

Use of of chloropicrin, banned under international law, was discovered by the Netherlands Military Intelligence and Security Service (MIVD) and General Intelligence and Security Service (AIVD) together with the German foreign intelligence service BND.

The Kyiv Independent previously reported rising chemical attacks, but Ukraine could not accurately identify the chemical substances due to lack of equipment.

The U.S. State Department had already reported in May that Russian forces have used the chemical agent chloropicrin in Ukraine. The May 1 announcement was part of a larger statement about the introduction of new U.S. sanctions against more than 280 individuals and entities.

For now, the original statement has been removed from the U.S. State Department website.

Russia is using this type of weapon more frequently and "with ease," says MIVD Director Vice Admiral Peter Reesink.

Dutch Defense Minister Ruben Brekelmans, who announced the news to the Dutch parliament, called the situation "absolutely unacceptable," calling for "more sanctions, isolation of Russia and unwavering military support for Ukraine."

"We are making this public now because Russia's use of chemical weapons must not become normalized," Brekelmans said. "If the threshold for using this type of weapon is lowered, it is dangerous not only for Ukraine but also for the rest of Europe and the world."

Since the start of the full-scale invasion in 2022, Russia has conducted over 9,000 chemical attacks. At least three Ukrainian soldiers have died directly from exposure to toxic substances, according to Ukraine's Ministry of Defense.

Dutch intelligence has established that Russian military leadership actively facilitates chemical attacks, and the use of banned substances has become standard practice for Russian forces.

Moscow is also increasing investments in chemical weapons programs, expanding research and recruiting new scientists, MIVD and AIVD observe.

The U.S. has accused Russia of deploying chloropicrin, often used in agriculture and widely weaponized as a “vomiting agent” during World War I.

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