An internal Pentagon communication reviewed by U.S. officials outlines potential measures to penalize NATO allies that declined to support American operations during the recent conflict involving Iran, including a proposal to suspend Spain from alliance roles.

According to a U.S. official familiar with the matter, the email circulated among senior defense leadership details frustration over some countries’ reluctance to provide access, basing, and overflight rights considered foundational support within NATO operations. The document suggests a range of responses aimed at increasing pressure on those allies.

One option discussed includes excluding certain countries from key NATO positions or activities. Another raises the possibility of reassessing U.S. backing for longstanding territorial arrangements, including the Falkland Islands, which are administered by the United Kingdom but claimed by Argentina.

Officials noted that NATO’s founding treaty does not include provisions for suspending member states, raising questions about the feasibility of some proposals. However, the measures appear intended to signal dissatisfaction and prompt greater alignment with U.S. strategic priorities.

President Donald Trump has publicly criticized NATO allies for not contributing more directly to efforts tied to the Iran conflict, particularly in maintaining maritime access through key shipping routes. He has also raised the possibility of reevaluating the U.S. role within the alliance, though the memo does not propose withdrawal.

Pentagon press secretary Kingsley Wilson said the administration is focused on ensuring allies meet their obligations, emphasizing that internal discussions are aimed at providing the president with policy options.

Spain has drawn particular scrutiny for both its response to the conflict and its defense spending levels, which remain below targets advocated by U.S. officials. The country hosts key American military installations, including Naval Station Rota and Morón Air Base.

Spanish Prime Minister Pedro Sánchez dismissed the report, stating that Spain remains a committed NATO partner and that policy decisions should be based on formal government positions rather than internal communications.

The memo reflects broader tensions within NATO following the Iran conflict, with European allies expressing concern about being drawn into military engagements while U.S. officials argue the alliance must operate with greater reciprocity.

While no final decisions have been announced, the proposals underscore ongoing debates about burden-sharing and the future direction of transatlantic defense cooperation.