Finland Joins France's Forward Nuclear Deterrence Initiative

Finland has joined France's Forward Nuclear Deterrence Initiative, a French-led effort to extend the reach of its nuclear deterrent through cooperation with partner countries in Europe, the leaders of both nations said on Monday.

France announced the initiative in March, prompted by concerns raised by U.S. President Donald Trump about Washington's security commitment to Europe and by the security implications of the war in Ukraine.

Finland's President Alexander Stubb said the initiative is primarily aimed at strengthening European security. In a post on X, he said it reinforces Europe's responsibility for its own defence and helps prevent escalation.

Under the arrangement, the French president alone holds the authority to decide when nuclear weapons are used. That differs from NATO, where nuclear planning is handled by a shared Nuclear Planning Group. The initiative instead offers joint exercises, the possible short-term deployment of nuclear-capable assets on allied territory and deeper consultation.

Finland's defence minister, Antti Häkkänen, described the agreement as a natural step, following other Nordic countries — Norway, Sweden and Denmark — that joined earlier in the year. With Finland's participation, 10 countries are now part of the initiative.

Stubb said the programme does not replace NATO's nuclear deterrence, and that Finland does not intend to allow nuclear weapons to be stationed on its territory in peacetime.