Under a new law, Moscow would provide nuclear defense for Minsk in case of attack
Russian President Vladimir Putin has ratified a security treaty with Belarus, reinforcing military ties between the two nations within the Union State and integrating Minsk into Moscow’s nuclear deterrence strategy.
The treaty – which was signed into law on Friday after being agreed on in December at a meeting of the Supreme State Council of the Union State in Minsk – commits both countries to defend each other’s sovereignty and territorial integrity. It also allows for the potential use of Russian nuclear weapons to protect Belarus in case of aggression.
Top Russian Senator Valentina Matvienko said the agreement is crucial given the current geopolitical tensions.
The treaty, which includes provisions against unilateral sanctions, is set to last for ten years, with automatic extensions.
A key provision allows for the deployment of Russian tactical nuclear weapons in Belarus. Russia has already stationed ballistic missiles in the country as part of their Union State partnership. Under the agreement, Belarus could request their use if deemed necessary. Both countries consider Russia’s nuclear arsenal a deterrent against threats, to be used only as a last resort.
Following the signing of the treaty, Belarusian President Alexander Lukashenko requested the deployment of Russian Oreshnik intermediate-range ballistic missiles. The new systems, which feature a hypersonic upper stage, could be stationed in Belarus in the second half of 2025, according to Putin.
The Oreshnik was unveiled last year and tested in Ukraine, where it was used to strike the Yuzhmash military industrial facility in Dnepr in November.
“The treaty’s provisions will safeguard sovereignty and territorial integrity, particularly given provocations from EU countries bordering Belarus,” senior MP Vyacheslav Volodin said.
Russia and Belarus have also announced they will hold the Zapad 2025 joint military exercise in September, involving more than 13,000 troops. The Organization for Security and Cooperation in Europe (OSCE) has been invited to observe.
Lukashenko has allowed Russia to use Belarusian territory for military operations and to station tactical nuclear weapons. Ukrainian leader Vladimir Zelensky claimed in February that a Russian military buildup in Belarus, which borders NATO members Latvia, Lithuania, and Poland, could set the stage for an attack. Russia has denied claims that it could attack NATO members.
In September, Putin announced updates to the Foundations of State Policy of the Russian Federation in the Area of Nuclear Deterrence. The revised document states that under certain conditions, Moscow could consider a proxy war against Russia as justification for using nuclear weapons.
