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Strait of Hormuz: IRGC attacks tanker as US completes 10th night of airstrikes on Iran
Herz — World Desk · · 30s summary · 4 min read
The essentials
Iran's IRGC (Islamic Revolutionary Guard Corps) attacked a tanker in the Strait of Hormuz on July 21, 2026, forcing the crew to abandon the vessel—confirmed by UKMTO (UK Maritime Trade Operations). The US completed its 10th consecutive night of airstrikes on Iran, targeting military command centres and missile sites. At least 3 American soldiers were killed and nearly 100 wounded. Yemeni Houthis announced an immediate maritime blockade of Saudi Arabia in the Red Sea, closing the Bab al-Mandeb strait through which ~12% of global trade normally passes. Iranian President Masoud Pezeshkian described the conflict as 'full-scale war'.
- IRGC attacks tanker in Strait of Hormuz; crew forced to abandon vessel.
- US completes 10th consecutive night of airstrikes on Iran.
- At least 3 US soldiers killed, ~100 wounded; Iran targets US bases in Kuwait and Bahrain.
- Houthis close Bab al-Mandeb strait to Saudi vessels, threatening ~12% of global trade.
- Iranian President declares 'full-scale war'; Tehran sends mediator to Pakistan.
What we know
Early on July 21, 2026, Iran's IRGC (Islamic Revolutionary Guard Corps, the elite military force answerable directly to Iran's Supreme Leader) attacked a tanker in the Strait of Hormuz off Oman, forcing the crew to abandon the vessel. The incident was confirmed by UKMTO (United Kingdom Maritime Trade Operations), the UK Royal Navy body based in Dubai responsible for monitoring maritime incidents in the Arabian Sea, according to The Guardian and the South China Morning Post.
The IRGC also claimed responsibility for two other ship attacks in the same strait on Monday, July 20.
During the night of July 20–21, the United States completed its 10th consecutive night of airstrikes on Iran. The raids, lasting approximately five hours, targeted military command centres as well as missile and drone launch sites, with the stated objective of reducing Iran's capacity to threaten commercial shipping in the Strait of Hormuz.
Iranian media reported that US airstrikes struck Bandar Abbas, Tabriz, and Bushehr—home to Iran's only operational civilian nuclear power plant.
Military escalation on both sides
In retaliation, Iran targeted US radar installations, air defence facilities, and administrative buildings in Kuwait and Bahrain. The IRGC warned Washington of 'more decisive and powerful waves of drone and missile attacks' to come.
At least 3 US soldiers were killed in Iranian strikes in the days preceding July 21. The Pentagon admitted that nearly 100 US troops had been injured in recent weeks.
On July 20, US President Donald Trump warned that Iran would pay 'many times over' for every American soldier killed. The same day, Iranian President Masoud Pezeshkian declared that the conflict had become 'a full-scale war'.
Timeline
- Approx. July 11–12, 2026The US begins its campaign of nightly airstrikes on Iran, targeting military infrastructure linked to threats against shipping in the Strait of Hormuz.
- Days preceding July 21, 2026Iranian strikes kill at least 3 US soldiers and wound nearly 100 others. Iran targets US installations in Kuwait and Bahrain.
- Monday, July 20, 2026IRGC claims two ship attacks in the Strait of Hormuz. Trump warns Iran; Pezeshkian declares 'full-scale war'. Houthis announce a maritime blockade of Saudi Arabia in the Red Sea.
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