In a defiant response to U.S. President Donald Trump's threats to cut trade with Spain due to its opposition to U.S. actions in Iran, Spain's Minister of Finance, Maria Jesus Montero, stated unequivocally that Spain would not be a 'vassal' of any other nation. This statement underscores Spain's determination to maintain its sovereignty and independence in international relations, particularly in the context of increasing pressure from the U.S. to escalate military spending within NATO.

Tensions have been heightened following remarks made by German Chancellor Friedrich Merz, who suggested that Spain needed to be 'convinced' to accept an increase in NATO military spending to 3.5% of its GDP. Trump's further insistence that allies should allocate as much as 5% of their GDP to defense has amplified the debate, illustrating the growing expectations placed on NATO members by some of its leading stakeholders.

Spanish Foreign Minister José Manuel Albares expressed astonishment at the statements from Merz, indicating that such comments would likely not have come from former German leaders Angela Merkel or Olaf Scholz. This sentiment reflects Spain's commitment to its diplomatic stance and its reluctance to engage in discussions perceived as coercive regarding military expenditures. Spain previously denied the U.S. the use of two military bases, emphasizing its desire to define its own military policies and alliances without succumbing to external pressures.