Experts: UK's nuclear pledge to Baltic allies is a political signal, not a new defense system
Experts say Britain's readiness to extend its nuclear deterrence to Estonia and other Joint Expeditionary Force members should be seen as a political message to Russia, not a decision to deploy nuclear weapons. They warn the real problem on NATO's eastern flank remains a shortage of conventional forces.
The United Kingdom announced earlier this week its readiness to extend its nuclear deterrence to Estonia and other members of the Joint Expeditionary Force (JEF), a military coalition of ten Northern European countries led by Britain. JEF was created as a flexible format allowing members to quickly coordinate action in a crisis without waiting for NATO's more cumbersome procedures to kick in.
Experts caution against interpreting the announcement as a decision to deploy nuclear weapons in the region or as the creation of a fundamentally new defense system. They note that nuclear deterrence already extends to NATO countries — Moscow had earlier warned the Western alliance it would be ready to resort to nuclear weapons if NATO moved against the Kaliningrad region.
A political signal to Russia
Former Estonian Defense Minister Hanno Pevkur stressed that the British statement should primarily be seen as a political signal to a potential adversary. "Of course, first and foremost, it was a signal to Russia that our allies are with us — there's no question about that," Pevkur said.
Britain retains its own national authority to decide on the use of its strategic nuclear forces, which are based on ballistic missiles carried by nuclear submarines. This means the absence of a formal NATO decision under Article 5 does not in itself prevent London from independently exercising control over its own nuclear capability.
Retired Major General Neeme Väli explained that while deterrence through conventional weapons needs to be logical and clearly defined, the situation with nuclear deterrence is different, since "red lines" are deliberately left undefined — precisely so an adversary cannot calculate exactly how far it can go without triggering a response.
The real problem: a shortage of forces
Experts emphasize that neither Britain's statements nor French initiatives on their own solve the alliance's main military problem on its eastern flank — the shortage of conventional armed forces. Security expert Meelis Oidsalu noted that funding for land forces and the navy remains fairly weak, and while some steps have been taken in drone warfare, less has been done than could have been. He said this raises a legitimate, critical question about how realistically Britain will be able to fulfill the role of regional military leader going forward.
