Poland and Lithuania have confirmed they are participating in discussions about their potential role in NATO's nuclear deterrence efforts, built around U.S. nuclear weapons stationed in Europe. The talks remain in early stages but come as some European allies seek reassurance of continued American military support amid President Donald Trump's effort to reduce U.S. conventional defense involvement on the continent.
The United States has maintained nuclear weapons in several European countries for decades as part of its security guarantees to NATO members. Currently, U.S. nuclear weapons are deployed in Belgium, Germany, Italy, the Netherlands, Turkey and Britain under NATO's nuclear sharing program, with dual-capable aircraft owned by both the U.S. and allied nations.
What the Left Is Saying
Progressive critics argue that expanding nuclear deterrence arrangements in Eastern Europe increases the risk of escalation with Russia at a time when diplomatic channels remain critical. Senator Chris Murphy of Connecticut has emphasized the need for sustained dialogue with Moscow rather than military posturing near Russian borders, arguing that arms control agreements and direct negotiations offer more sustainable security solutions.
Defense policy analysts aligned with progressive thinking contend that increased reliance on nuclear deterrence cannot substitute for robust conventional forces and diplomatic engagement. They point to concerns about signaling coherence in alliance defense postures, noting that communicating willingness to risk nuclear conflict while reducing conventional commitments sends mixed messages to both allies and adversaries.
Environmental and peace activists have organized protests against expanded military presence in Europe, arguing that nuclear weapons stationed closer to potential conflict zones increase existential risks. The Institute for Policy Studies has published analyses questioning whether additional nuclear sharing arrangements make European populations safer or merely serve to entrench weapons systems that pose ongoing environmental and security hazards.
What the Right Is Saying
Conservative defense hawks argue that strengthening NATO's nuclear deterrent is essential given Russian aggression in Ukraine and Moscow's broader threats to alliance members. Senator James Lankford of Oklahoma, a member of the Senate Armed Services Committee, has stated that credible nuclear deterrence remains the foundation of NATO's collective defense guarantee.
Former National Security Advisor John Bolton has argued that expanding U.S. nuclear cooperation with Poland and Baltic states directly addresses gaps in alliance credibility exposed by debates over conventional force reductions. "Nuclear sharing arrangements reinforce the principle that an attack on any NATO ally would be met with a full response," Bolton wrote in recent commentary.
Republican defense strategists note that France's parallel nuclear coordination initiative offers European allies additional deterrence options independent of U.S. decisions about conventional posture adjustments. They argue this diversification strengthens overall alliance resilience against potential coercive tactics by adversaries seeking to exploit transatlantic divisions.
What the Numbers Show
Poland has expressed interest in participating in NATO nuclear deterrence since Russia's full-scale invasion of Ukraine began in February 2022, with former President Andrzej Duda publicly welcoming the hosting of U.S. nuclear weapons on Polish territory.
The current government led by Prime Minister Donald Tusk has adopted a more cautious approach, speaking only about securing "a bigger role" in nuclear deterrence rather than direct weapon hosting. Deputy Defense Minister Paweł Zalewski emphasized that hosting nuclear weapons would be "an extremely serious matter, which is serious in terms of political consequences."
Poland is one of nine European countries to join France's nuclear coordination initiative, alongside Britain, Germany, the Netherlands, Belgium, Greece, Sweden, Denmark and Norway. The French program allows temporary deployment of nuclear-armed aircraft to partner nations and participation in deterrence exercises.
Artur Kacprzyk, a nuclear deterrence analyst with the Polish Institute of International Affairs in Warsaw, suggested a potential middle-ground option he termed "nuclear sharing light." Under this framework, Polish aircraft would be certified for carrying U.S. nuclear weapons while the weapons themselves would remain deployed outside Poland, serving as a backup capability if German or Dutch aircraft are destroyed before use.
A NATO official told the AP that work to assess and potentially adapt alliance nuclear deterrence 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 Bottom Line
Poland, Lithuania and other Eastern European allies are seeking greater integration into NATO's nuclear deterrent framework as uncertainty grows about long-term U.S. conventional military commitments to Europe. While no formal decisions have been announced, officials from both Warsaw and Vilnius confirm active discussions are underway.
The outcome of these deliberations will be closely watched at the upcoming NATO ministerial meeting scheduled for June 18 in Brussels. Polish Defense Minister Władysław Kosiniak-Kamysz indicated nuclear deterrence would be a key agenda item, encompassing both U.S. nuclear sharing arrangements and France's complementary initiative.
Security analysts note that expanding nuclear cooperation could help offset conventional force reductions but cannot fully substitute for forward-deployed troops, particularly in countries bordering Russia. The challenge of maintaining coherent deterrence signals across conventional and nuclear domains remains a central concern for alliance planners as NATO adapts to shifting security conditions.