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Belarusian President Alexander Lukashenko said that Russia has deployed its latest nuclear-capable Oreshnik missile system to Belarus. The move came as diplomatic efforts to end the war in Ukraine entered a critical phase.

Lukashenko said the Oreshnik, an intermediate-range ballistic missile system, arrived in Belarus earlier this week and has begun entering combat duty. He did not disclose how many missiles were deployed or specify their locations.

Russian President Vladimir Putin confirmed a day earlier that the Oreshnik would enter combat duty this month, speaking during a meeting with senior Russian military officials. During the meeting, Putin warned that Moscow would seek to expand its territorial gains in Ukraine if Kyiv and its Western backers reject Russia’s demands in ongoing peace talks.

Belarusian Defense Minister Viktor Khrenin said, “The Oreshnik missile system has arrived and has been deployed on the territory of the Republic of Belarus. Preparations are underway for it to go on combat duty.” Khrenin highlighted that the deployment of the Russian-made hypersonic missile system in Belarus is an issue of strategic deterrence.

The deployment adds a new strategic dimension to the conflict as U.S. President Donald Trump intensifies diplomatic efforts to end nearly four years of fighting following Russia’s full-scale invasion of Ukraine in February 2022. Washington’s initiative, however, has been complicated by sharply conflicting positions held by Moscow and Kyiv.

Missile Capabilities and Strategic Significance

The Oreshnik missile system represents one of Russia’s most advanced strike capabilities. Classified as an intermediate-range ballistic missile, it is capable of flying distances between 500 and 5,500 kilometers, placing much of Europe within reach when launched from Belarusian territory.

According to statements by Putin and Russian state media, the Oreshnik is designed to carry multiple warheads that descend toward their targets at speeds of up to Mach 10. Russian officials have repeatedly claimed that the missile is impossible to intercept with existing air and missile defense systems, a claim that cannot be independently verified.

Russia first tested a conventionally armed version of the Oreshnik, named after the Russian word for “hazelnut tree,” in November 2024. The missile was also used to strike a Ukrainian industrial facility. Putin later boasted that even a conventional strike using multiple Oreshnik warheads could be as devastating as a nuclear attack due to the missile’s speed, precision, and payload.

Another key feature of the Oreshnik is ambiguity. There is no way for a targeted country to determine whether the missile is carrying a nuclear or conventional warhead before impact, significantly complicating early warning and response calculations for NATO and neighboring states.

Russian state media has claimed that the missile could reach an air base in Poland in approximately 11 minutes and NATO headquarters in Brussels in about 17 minutes if launched from Belarus.

Nuclear Context and Treaty Background

Intermediate-range missiles were previously banned under a Cold War-era arms control treaty between Washington and Moscow. Both countries withdrew from the agreement in 2019, citing mutual violations, reopening the door for the development and deployment of such weapons.

Russia has already stationed tactical nuclear weapons in Belarus, whose territory was used as a staging ground for the February 2022 invasion of Ukraine. Lukashenko has previously said that Belarus hosts several dozen Russian tactical nuclear warheads.

The Oreshnik deployment reinforces Belarus’s role within Russia’s nuclear and strategic posture. In December 2024, Putin and Lukashenko signed a security pact under which Russia retained control over the missile systems but would allow Belarus to select targets in the event of their use. Putin also noted that if the missiles were used against targets closer to Belarus, they could carry a significantly heavier payload.

Revised Nuclear Doctrine and Regional Implications

In 2024, the Kremlin released a revised nuclear doctrine that lowered the threshold for potential nuclear use. Under the updated policy, any conventional attack on Russia that is supported by a nuclear-armed state would be treated as a joint attack, a warning widely interpreted as aimed at discouraging Western countries from allowing Ukraine to strike Russian territory with long-range weapons.

The revised doctrine also explicitly placed Belarus under Russia’s nuclear umbrella, further integrating the two countries’ security policies.

The deployment of Oreshnik to Belarus comes as Moscow continues to signal that it is prepared to escalate militarily if diplomatic efforts fail. Putin has warned that Russia could use the missile against countries that enable Ukraine to strike targets deep inside Russian territory.

Domestic and International Reactions

Belarusian opposition leader Sviatlana Tsikhanouskaya criticized the deployment, warning that it deepens Belarus’s dependence on Moscow and increases security risks for the country.

“The deployment of Oreshnik turns Belarus into a target and militarizes the country, and we stand categorically against it,” Tsikhanouskaya said. “Putin is using Lukashenko as a tool for the Kremlin’s games.”

Lukashenko, who has ruled Belarus for more than three decades, has faced repeated Western sanctions over human rights abuses and his support for Russia’s war in Ukraine. At the same time, he has sought limited engagement with the United States.

Over the weekend, Lukashenko released 123 political prisoners, including Nobel Peace Prize laureate Ales Bialiatski, as part of a deal with Washington that led to the lifting of U.S. sanctions on Belarus’s potash industry, a major source of export revenue.

The arrival of the Oreshnik missile system in Belarus underscores the increasingly high-stakes nature of negotiations aimed at ending the Ukraine war. While the chances of a near-term political settlement remain uncertain, the deployment signals Russia’s intent to strengthen its military leverage even as diplomatic channels remain open.

For NATO and neighboring states, the presence of a fast, nuclear-capable missile system on Belarusian soil adds urgency to concerns about regional stability and escalation risks as talks continue.