Full Breakdown
Poland, Lithuania and Baltic Nations Join NATO Nuclear-Sharing Expansion Talks
6/5/2026, 12:06:54 AM
Expanding NATO’s Nuclear Deterrence: Current Negotiations
U.S. officials are engaged in NATO-internal discussions about extending the alliance’s nuclear-sharing framework to additional eastern-flank members. Poland, Lithuania and the Baltic states of Estonia and Latvia have expressed interest in hosting bases for U.S. dual-capable aircraft (DCAs) that can deliver conventional or nuclear payloads. The talks are described as “early-stage” and classified; no agreement on deployment has been reached.
Background: NATO Nuclear Sharing and the Ukraine Conflict
Since the Cold War, NATO’s nuclear-sharing program has placed U.S. B61 bombs in six European states—Belgium, Germany, Italy, the Netherlands, Turkey and the United Kingdom—while retaining U.S. control in peacetime. Russia’s full-scale invasion of Ukraine has revived debate over the adequacy of existing deterrence, especially as the United States reduces its conventional force presence in Europe. Pentagon officials note a continuous assessment of the security environment, but have declined comment on any expansion.
Key Actors
- United States: Department of Defense, policy chief Elbridge Colby, and unnamed senior officials overseeing NATO-level talks.
- Poland: Deputy Defense Minister Pawel Zalewski and Defense Minister Wladyslaw Kosiniak-Kamysz.
- Lithuania: Defense Minister Robertas Kaunas.
- NATO: Unnamed spokesperson emphasizing ongoing posture assessments.
- France: Initiator of a complementary “forward deterrence” scheme involving temporary deployment of French nuclear-armed aircraft; participating allies include Britain, Germany, the Netherlands, Belgium, Greece, Sweden, Denmark and Norway.
- Analyst: Artur Kacprzyk, Polish Institute of International Affairs.
Data & Statistics
- Current nuclear-sharing hosts: Belgium, Germany, Italy, the Netherlands, Turkey, United Kingdom (six countries).
- Potential new hosts: Poland, Lithuania, Estonia, Latvia (four states explicitly mentioned).
- U.S. troop adjustments: 5,000 troops withdrawn from Germany; a planned 4,000-person rotation to Poland cancelled and later reversed with a new 5,000-troop deployment to Poland.
- French initiative participants: Britain, Germany, Netherlands, Belgium, Greece, Sweden, Denmark, Norway, plus Poland.
Official Statements & Responses
Polish Deputy Defense Minister Pawel Zalewski said the dialogue aims “to create better conditions for nuclear deterrence and for Poland to play an important role.” Lithuanian Defense Minister Robertas Kaunas affirmed that “discussions are ongoing and Lithuania is certainly not standing on the sidelines.” A NATO official stressed that work to assess and adapt NATO’s nuclear posture “has been ongoing for several years and is not linked to any decision taken by the U.S. to adjust its conventional posture in Europe.” The Pentagon declined to comment, while a Defense Department spokesperson reiterated that the United States and NATO “continuously assess the security environment” to maintain effective deterrents.
Criticism & Opposition
Analyst Artur Kacprzyk warned that a “middle ground”—dubbed “nuclear sharing light,” in which Polish aircraft would be certified for U.S. nuclear weapons but the weapons would not be stationed in Poland—may send “conflicting signals” by suggesting a willingness to risk nuclear war while avoiding the deployment of troops. He added that “you need coherent signals at all levels of deterrence.”
Conflicting Reports & Gaps
U.S. officials have signaled openness to additional deployments, yet sources stress that “no agreement to expand U.S. nuclear hosting is imminent.” Polish officials deny any plan to host nuclear weapons, describing such a move as “an extremely serious matter” with political consequences, while other statements emphasize broader participation in deterrence without specifying weapon placement. Details of the proposed basing arrangements remain classified.
Verbatim Quotes
- “We are talking, in order to create better conditions for nuclear deterrence and for Poland to play an important role in that,” — Pawel Zalewski, Polish Deputy Defense Minister
- “Discussions are indeed taking place. I do not want to go into details at this point as they are classified, but discussions are ongoing, and Lithuania is certainly not standing on the sidelines,” — Robertas Kaunas, Lithuanian Defense Minister
- “There might be a middle ground there, which could be called ‘nuclear sharing light'. You would have, for example, Polish planes, certified for carrying U.S. nuclear weapons, but the weapons won’t be deployed in Poland. This aircraft from the east could be a sort of backup if, let’s say, German or Dutch aircraft are destroyed before they can use those nuclear weapons.” — Artur Kacprzyk, nuclear deterrence analyst, Polish Institute of International Affairs
- “You need coherent signals at all levels of deterrence.” — McNeil, reporter (as quoted in source material)
What’s Next
NATO will address the issue of expanded nuclear deterrence at its Brussels summit on June 18, where Polish Defense Minister Wladyslaw Kosiniak-Kamysz expects a formal discussion. Parallel talks on France’s forward-deterrence scheme continue, and U.S. officials will maintain NATO-channel consultations to gauge ally interest and assess the feasibility of hosting additional DCAs. No timeline for any deployment has been announced.
