A fresh geopolitical standoff is unfolding in the Strait of Hormuz after Iran's Revolutionary Guard warned that all commercial vessels must use routes approved by Tehran while transiting the strategic waterway. The warning comes just days after Oman and international maritime authorities announced a temporary shipping corridor aimed at helping thousands of stranded seafarers and restoring safe navigation through the region. Iran has declared that coordination with the IRGC Navy is mandatory and warned against the use of routes established without its approval.