Trump lashes NATO as alliance fractures widen over Iran conflict responseSummary:Trump criticises NATO after meeting with RutteAccuses allies of failing to support Iran war effortRenews rhetoric on Greenland tensionsNo clear commitment to remain in NATOReports of potential US troop redeploymentsEuropean allies resisting deeper involvement in conflictSpain reportedly limiting airspace use for US operationsNATO unity under strain amid geopolitical tensionsCeasefire in place but alliance divisions persistU.S. President Donald Trump renewed his criticism of NATO following a closed-door meeting with alliance chief Mark Rutte, escalating tensions within the bloc as divisions deepen over the Iran conflict.In social media comments after the meeting, Trump accused NATO allies of failing to support the United States during its military campaign against Iran, questioning the alliance’s reliability in future crises. He also revived rhetoric around Greenland, a long-standing flashpoint with Denmark, signalling that strategic disputes within NATO remain unresolved.The meeting came amid speculation that Trump could seek to withdraw the United States from NATO or reduce its commitment, following frustration that key allies declined to participate in efforts to secure the Strait of Hormuz. While Trump stopped short of announcing any formal move, reports suggest the administration is considering redeploying U.S. troops away from countries viewed as uncooperative.Rutte described the talks as “frank and open,” but declined to confirm whether NATO membership was directly threatened, highlighting ongoing uncertainty around U.S. intentions.The tensions reflect broader fractures within the alliance. Several European nations have resisted direct involvement in the Iran conflict, with concerns over escalation and legal mandates shaping their response. Spain, for example, has reportedly restricted the use of its airspace for U.S. operations, underscoring the limits of allied support despite NATO’s collective defence framework.Trump has repeatedly criticised NATO as ineffective, branding it a “paper tiger” and singling out individual leaders, while also pressing allies to increase defence spending. His rhetoric has revived longstanding concerns about U.S. commitment to the alliance, particularly at a time when NATO is already navigating multiple geopolitical challenges, including the war in Ukraine.The meeting follows a fragile two-week ceasefire between the U.S. and Iran, but the dispute highlights that even as hostilities ease, divisions among Western allies could persist. For markets, the episode reinforces uncertainty around geopolitical coordination, particularly in securing global energy supply routes such as the Strait of Hormuz. This article was written by Eamonn Sheridan at investinglive.com.