The Iranian government has issued a warning to global markets, threatening economic retaliation following the yen's sharp rise against the US dollar. The Japanese currency has surged to its highest level since February, reaching 154 yen per dollar, driven by safe-haven demand amid global uncertainty. This movement has raised concerns in Tehran, which has previously linked currency fluctuations to broader geopolitical tensions. Officials have not yet specified the nature of potential retaliation, but the warning underscores the growing influence of currency markets on international relations. Analysts suggest that Iran's stance reflects broader anxieties about economic stability and sanctions pressures. The situation highlights the interconnectedness of financial markets and geopolitical strategies.