Iran's Revolutionary Guard (IRGC) forces are expected to begin a major exercise in the Persian Gulf as soon as within the next 48 hours that could be aimed at demonstrating their ability to shut down the Strait of Hormuz, two U.S. officials familiar with the latest assessment of IRGC troop movements told CNN on Wednesday.

"We are aware of the increase in Iranian naval operations within the Arabian Gulf, Strait of Hormuz and Gulf of Oman. We are monitoring it closely, and will continue to work with our partners to ensure freedom of navigation and free flow of commerce in international waterways," Captain William Urban, chief spokesman for U.S. Central Command, told CNN.


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