US President Donald Trump has escalated his warning to any nation considering an economic lifeline to Iran, confirming the launch of what he calls the "most crushing economic operation ever taken against any country". In a Wednesday Truth Social post, he described the measures as "Economic Warfare and Isolation on an unprecedented scale" and compared the effort to an "economic D-Day", signalling a major intensification of Washington's pressure campaign against Tehran. New coverage indicates his warning explicitly targets countries considering trade with Iran, potentially drawing in Iran's neighbouring trading partners.

The precise terms of the sanctions package remain undetailed in available reporting, though Trump indicated that any country assisting Iran would face serious consequences of its own. The announcement comes amid heightening regional tension, with the UAE reported to have cut ties with Iran following hostile missile strikes; analysts have suggested Iran's targeting of neighbouring trade partners could even trigger an Article 5 NATO response, underscoring the volatility surrounding the situation.