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Day 23: Trump Threatens to Obliterate Iran's Power Plants, Tehran Vows Total Energy Retaliation
By Le Pivot — Iran Monitor · March 21, 2026 · 10 min read
Day twenty-three of the war. The escalation reaches a new threshold with an ultimatum from Donald Trump: if Iran does not fully reopen the Strait of Hormuz within 48 hours, the United States will “obliterate” its power plants. Tehran immediately promised to retaliate by targeting all energy infrastructure linked to the US and Israel in the region. Meanwhile, Iranian missiles continue to breach Israeli defenses, striking towns near the Dimona nuclear facility.
Trump’s Ultimatum: 48 Hours to Reopen Hormuz
Donald Trump issued an unequivocal ultimatum on Sunday: Iran must fully reopen the Strait of Hormuz within 48 hours, or the United States will “obliterate” its power plants. The US president claimed the military campaign was “weeks ahead of schedule” and denied seeking any negotiations, declaring that Iran’s “leadership is gone” (Al Jazeera).
This threat represents a qualitative escalation: targeting power plants would plunge 88 million Iranians into darkness, with catastrophic humanitarian consequences for hospitals, water systems, and civilian infrastructure.
Tehran’s Promised Retaliation
Iran’s response was swift. Its military command warned that any attack on its power plants would trigger strikes on “all energy infrastructure linked to the US and Israel in the Middle East” — a threat encompassing refineries and oil terminals in Saudi Arabia, Bahrain, Kuwait, and the United Arab Emirates (Al Jazeera).
Iran also announced its 70th wave of attacks since the conflict began, launching missiles and drones toward Israel and US bases in the Gulf. Iranian armed forces also claimed to have intercepted a US-Israeli armed drone over Tehran.
Iranian Missiles Strike Near Dimona
Iranian missiles directly struck the towns of Dimona and Arad in southern Israel, near the Dimona nuclear reactor. Nearly 100 people were injured in these strikes, which exposed gaps in Israel’s missile defense system (CBS News). Since the beginning of the conflict, more than 4,290 wounded have been admitted to Israeli hospitals.
Israel struck over 200 sites across Iran and Lebanon in the past 24 hours, with new explosions reported in eastern Tehran. The Israeli air force dropped 5,000-pound bombs on underground coastal facilities housing Iranian missiles.
Human Toll and Humanitarian Crisis
The official death toll now exceeds 1,500 in Iran, including at least 204 children, with over 20,900 wounded. Seven hospitals have been evacuated, and 36 ambulances have been damaged by bombardments.
On the Israeli side, daily Iranian strikes continue to weigh on civilian populations in the south, forcing repeated evacuations. A Hezbollah attack from Lebanon killed at least one person near the northern border (Times of Israel).
The Strait of Hormuz: Central Battleground
Iran’s blockade of the Strait of Hormuz remains the war’s central economic issue. Approximately 13 million barrels of oil transited daily through the passage in 2025, representing 31% of global seaborne crude flows. Brent crude now hovers around $103 per barrel, after peaking near $120 (CNBC).
Twenty-two countries, including the UAE and Australia, have joined a coalition to ensure freedom of navigation in the strait. Saudi Arabia, Kuwait, and other Gulf states report near-daily interceptions of Iranian drones and missiles: Bahrain alone has shot down 143 missiles and 242 drones since the conflict began.
Goldman Sachs raised its US inflation forecast by 0.8 percentage points to 2.9% for 2026, while lowering GDP growth projections by 0.3 points to 2.2% (CNBC).
Civil Society and Internal Repression
Inside Iran, the human rights situation continues to deteriorate. A UN report published this week denounces a “deepening human rights crisis,” with mass arrests, violence against demonstrators, and severe restrictions on freedom of expression and internet access (OHCHR).
Anti-regime protests spanning all 31 provinces since the 2025-2026 uprisings continue despite the war. Iran’s women’s football team refused to sing the national anthem before an Asian Cup match, in a silent protest gesture that resonated worldwide.
Key Takeaways
Trump’s ultimatum on Iran’s power plants marks a new escalation in a conflict entering its fourth week with no ceasefire in sight. Iran’s ability to strike Dimona — near a nuclear site — and Tehran’s threat to target all Gulf energy infrastructure paint a scenario where escalation feeds escalation. The Strait of Hormuz remains Iran’s central strategic lever, and the next 48 hours will be decisive for the conflict’s trajectory — and for the global economy.