Tensions over defense spending and alliance burden-sharing remain the central driver of discussions around potential NATO exits, with the United States under the current administration pressing European members to assume greater responsibility for conventional defense. Recent U.S. actions, including selective exclusion of certain allies from working-group talks on NATO's future and reviews of troop posture in Europe, have fueled speculation about reduced U.S. engagement, though senior officials have stated there are no plans for formal withdrawal. Legal requirements for congressional approval of any U.S. exit, along with the one-year notice period under the North Atlantic Treaty, create significant procedural barriers. No other member state has signaled intent to leave, and scheduled alliance consultations continue to focus on adapting structures rather than dissolution. Upcoming force posture decisions and any further public statements on spending targets could influence trader assessments of near-term risks.