By Nana Karikari, Senior Global Affairs Correspondent
Iran has reversed course on reopening the Strait of Hormuz, warning it will continue to block transit through the narrow waterway as long as the U.S. blockade of Iranian ports remains in effect. The country’s joint military command confirmed Saturday that “control of the Strait of Hormuz has returned to its previous state… under strict management and control of the armed forces.” The move serves as a direct response to President Donald Trump’s insistence that the American naval blockade “will remain in full force” until Tehran reaches a deal on its nuclear program. Tehran’s move slams shut a brief window of diplomatic optimism and functions as a retaliatory measure against the White House’s refusal to lift its parallel blockade.
This announcement effectively nullifies a short-lived declaration by Iranian Foreign Minister Abbas Araghchi, who had initially stated the passage was “completely open” to commercial traffic in coordination with a newly established ceasefire in Lebanon. However, the Islamic Republic of Iran Broadcasting (IRIB) confirmed Saturday that passage now “requires IRAN approval” because the “U.S. did not fulfill their obligations.” An Iranian military spokesman characterized the situation as a result of “repeated breaches of trust” by the United States, alleging that Washington continues to “engage in piracy and maritime theft under the so-called title of blockade.” Parliament Speaker Mohammad Bagher Qalibaf emphasized early Saturday that the waterway “will not remain open” if the U.S. blockade persists.
Dueling Blockades and Broken Trust
The maritime standoff is rooted in a cycle of reciprocal economic and military pressure. President Donald Trump clarified on Friday that the U.S. naval blockade—which targets all vessels entering or exiting Iranian ports—”will remain in full force” until a comprehensive deal is reached. Trump indicated that any final agreement must address Tehran’s nuclear program and the removal of enriched uranium, claiming that a deal would involve the U.S. taking control of the country’s nuclear material. Iranian officials swiftly condemned this stance as a “violation of last week’s ceasefire agreement” brokered by Pakistan.
Parliamentary Speaker Mohammad Bagher Ghalibaf dismissed the President’s optimistic public statements as “false.” Ghalibaf accused Trump of making “seven claims in one hour, all seven of which were false,” and argued that Washington would “not get anywhere in negotiations” through such tactics. He further asserted that the status of the strait is “determined on the ground, not on social media,” and that any future transit would require “Iran’s authorization” via a “designated route.” While Trump previously thanked Iran for the opening, calling it a “great and brilliant day for the world,” Ghalibaf retorted that “with the continuation of the blockade, the Strait of Hormuz will not remain open.”
Market Volatility and Shipping Anxiety
The flip-flop in policy sent shockwaves through global markets, with direct implications for emerging economies and energy-dependent nations. Initially, global oil prices fell 9% following the news that tankers might resume shipments, offering a brief reprieve for international markets fearing a surge in inflation and fuel costs. While global investors previously hoped to avoid a worst-case economic scenario, the subsequent re-closure has left the maritime industry in a state of paralysis. Data firm Kpler noted that while there was “cautious optimism,” a return to normal trade—essential for stabilizing the global supply chain—could take “months, not weeks.”
The reality on the water remains grim. U.S. Central Command (CENTCOM) reported Saturday that 21 vessels have been forced to turn back to Iran since the blockade began on April 13. While four tankers—the Raine, Gardian, and two others identified as part of Iran’s sanctioned “dark fleet”—were spotted transiting the strait on Saturday, analysts remain skeptical. Shipping companies remain cautious, as evidenced by a large passenger cruise ship that took its chances transiting toward Muscat on Friday while most tankers turned back. Experts suggest the true test of the blockade will come in approximately 10 days when these vessels reach international choke points like the Malacca Strait.
Fragile Truce in Lebanon and the Yellow Line
The maritime crisis unfolds against the backdrop of a 10-day ceasefire between Israel and Hezbollah, which began Friday at midnight. While the truce appears to be holding, it remains tenuous. The fragile calm prompted thousands of displaced Lebanese families to head home, despite the immense destruction. Israeli Prime Minister Benjamin Netanyahu warned that Israel is “not finished yet” with Hezbollah.
Concurrently, the Israeli military is implementing a “yellow line” policy, copying a model used in Gaza. This bars residents from returning to 55 occupied villages in southern Lebanon to ensure a buffer zone. Israeli Defense Minister Israel Katz stated the IDF “will continue to hold all the places it has cleared and captured.” Despite the official ceasefire, Hezbollah has stated its future response will depend entirely on “how events unfold.”
Uncertain Path to Pakistan Negotiations
Diplomatic hopes now hinge on a potential second round of direct talks in Pakistan scheduled for Monday. President Trump suggested on Friday that a deal could happen “very quickly,” even hinting at the possibility of resuming military strikes if a resolution is not reached by Wednesday. “Maybe I won’t extend it, so you have a blockade, and unfortunately we have to start dropping bombs again,” Trump told reporters aboard Air Force One.
Iranian officials have expressed deep skepticism regarding the U.S. approach. One senior official warned that Trump’s public assertions were “alternative facts” and cautioned that the U.S. might be “using diplomacy to exhaust diplomacy” while potentially “planning a new aggression.” As both nations move toward the negotiating table in Islamabad, the international community remains on edge. The standoff underscores a high-stakes gamble where economic leverage and military posturing collide, leaving the stability of global energy markets and the success of regional ceasefires hanging in a precarious balance.
