Iran's Revolutionary Guard has seized a foreign-crewed oil tanker in the Persian Gulf, intensifying tensions in one of the world's most vital shipping corridors. This action follows the recent seizure of an Iranian-linked tanker by Washington near Venezuela, signaling a growing tit-for-tat dynamic between the two nations. Tehran has described its move as an anti-smuggling operation, but the timing has sparked international concern over the stability of energy supplies and maritime security. Analysts caution that these enforcement actions are increasingly intertwined with broader geopolitical disputes, leaving energy markets and global trade in a state of uncertainty.