Russia Moves Nuclear Warheads Into Belarus

The signal Russia sent on May 21 was designed to be seen. Tactical nuclear warheads were moved to the field positions of an Iskander-M missile brigade inside Belarus, and they stayed there.

Both defence ministries released footage of Belarusian crews loading mobile launchers and moving out to concealed firing positions (Euronews, Euromaidanpress). Whether the warheads contained actual fissile material, the material needed for a nuclear explosion, remains impossible to verify independently. Moscow and Minsk say they were real.

The mechanics matter here. Tactical nuclear warheads are normally kept in hardened bunkers, physically separate from the missiles that would carry them. They are brought together only at the last stage before possible use.

By moving warheads to a brigade's operational firing positions, Russia removed that buffer in public view. It did so during exercises involving tens of thousands of troops, and then left the warheads in place.

The Baltic Stress Test

The nuclear move came at the end of two weeks of pressure on NATO's northeastern flank. On May 20, a drone entered Lithuania from Belarusian airspace and triggered the country's first nationwide shelter alert since Russia's full-scale invasion of Ukraine.

The president and members of parliament were evacuated. Vilnius airport was closed. NATO jets scrambled. The drone was never found.

Latvia was hit harder. A drone crash near Rēzekne on May 7 exposed air defence failures serious enough to bring down the government.

Prime Minister Siliņa dismissed her defence minister over the failure. When his party quit the coalition, she resigned on May 14. Russia's foreign intelligence service, the SVR, then named specific Latvian military bases and threatened retaliation.

Latvia became the first NATO member whose government collapsed in direct connection with drone incursions from the east. For Ireland, outside NATO but inside the EU, this is the kind of eastern security pressure that now feeds directly into Europe's defence debate, including the more awkward questions around neutrality.

Tallinn-based defence analysts have called the combined sequence a "mass disruption weapon." Whether Moscow deliberately lined up nuclear deployment, drone penetrations and intelligence threats, or simply took advantage of overlapping crises, remains unclear.

The practical effect was clear enough: three Baltic capitals unsettled within two weeks, and one allied government gone.

Europe's Fractured Deterrence

France has tried to offer a European answer. At a summit in Gdańsk in April, President Macron extended French nuclear deterrence to Poland and seven other allies.

It was the first time a French president had opened the country's nuclear umbrella beyond France itself. The power to launch, however, remains with the French president alone. The promise lasts only as long as the political will of whoever holds that office.

Germany is preparing for a different deadline. Inspector General Breuer, head of Germany's armed forces, the Bundeswehr, has warned publicly that Russia could test NATO with large-scale military operations by 2029.

Berlin plans to increase defence spending sharply before then. But a planned deployment of US long-range missiles to Germany has quietly collapsed. Those weapons would have filled part of the gap left when the INF Treaty, which banned intermediate-range nuclear missiles in Europe, ended in 2019. No replacement has been announced.

The American military footprint in Europe is also shrinking. The Pentagon is cutting its European combat brigades from four to three.

President Trump has announced 5,000 additional troops for Poland, but Polish Deputy Defence Minister Tomczyk said the situation required a "diplomatic offensive", signalling that no agreement has been reached. Three days before that announcement, NATO's supreme allied commander confirmed that troops were already being pulled from Europe.

NATO Secretary General Rutte warned of "devastating consequences" for any nuclear use. The EU, at the ongoing NPT Review Conference, where signatories to the Nuclear Non-Proliferation Treaty assess compliance, called on Moscow and Minsk to "reverse this decision".

Neither NATO nor the EU announced concrete changes to its military posture.

Lukashenko does not hold the launch codes. Moscow retains sole authority over the warheads. Belarus supplies the geography: from Belarusian soil, the Iskander-M can reach Warsaw, Vilnius and Riga.

No one outside Moscow knows how many warheads are there, or how long they will stay.