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Story summary
- Traffic in the Strait of Hormuz has nearly halted for weeks due to the Iran war, boosting oil prices.
- U.S. President Donald Trump linked reopening of the Strait of Hormuz to a ceasefire with Tehran.
- As talks stalled, he announced a naval blockade of Iran.
- NBC News monitors the daily ship count in the strait, even as some ships alter Global Positioning System (GPS) trackers, which may yield higher counts.