Strait of Hormuz: Open, closed, open, closed - What's actually happening?

The Strait of Hormuz has been declared fully closed by Iran's Islamic Revolutionary Guard Corps (IRGC) until the United States lifts its blockade on Iranian ports and ships. This announcement reverses previous guidance that allowed commercial vessels to transit the strait under coordination with Iranian authorities and upon payment of fees. The IRGC has warned that any vessel violating this closure will be targeted, asserting that the U.S. blockade constitutes a breach of the ceasefire agreement between the two nations. This development has intensified the ongoing tensions in the region. Iran has accused the United States of "piracy" and has stated that any ship approaching the Strait of Hormuz will now be considered a target until the blockade is lifted. The IRGC's statement, reported by Iranian state media, emphasizes the seriousness of the situation and the implications for maritime security in this crucial waterway. The closure includes a corridor that was previously designated for safe passage, further complicating the navigation of commercial vessels in the area. The political backdrop involves ongoing U.S.-Iran negotiations, which have shown limited progress and remain tense, particularly regarding disputes over enriched uranium and the Strait of Hormuz. The situation has drawn attention from various international observers, with some warning that the conflict could escalate if no agreement is reached. The IRGC's actions and statements reflect a significant escalation in Iran's response to the U.S. blockade and the broader geopolitical dynamics at play in the region.