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US strikes IRGC targets near Hormuz as new sanctions on Iran loom

First brief 2 Sep, 05:00 IST Updated 1 Sep, 21:30 IST 5 developments 4 min read Latest ↓
Satellite view of the Strait of Hormuz between Iran and Oman
Photo: MODIS Land Rapid Response Team, NASA GSFC / Wikimedia Commons · Public domain

Where it stands

On 1 September 2026, US forces struck Islamic Revolutionary Guard Corps (IRGC) targets in southern Iran. US Central Command said the IRGC had tried to attack ships in the Strait of Hormuz. Iranian media reported explosions at Qeshm Island, Bandar Abbas, Chabahar, Jask and Sirik. Iran's Red Crescent said four people died at a wedding in Sirik county. The IRGC then claimed a missile attack on a US base in Jordan. Jordan said air defences stopped 10 of 13 missiles. US Treasury Secretary Scott Bessent said bank sanctions on Iran will follow. The United States and Iran signed a memorandum of understanding on 17 June 2026. The memorandum's 60-day talks ended on 17 August 2026 with no final deal. The Strait of Hormuz remains mostly closed to shipping.

Version 1 · rewritten 2 Sep, 05:00 IST

Background

US and Israeli strikes on Iran began the war on 28 February 2026. On 2 March 2026, the IRGC announced the closure of the Strait of Hormuz. On 17 June 2026, the United States and Iran signed the Islamabad Memorandum of Understanding. The memorandum gave 60 days for a final deal. The United States restored a naval blockade on 14 July 2026. The 60 days ended on 17 August 2026 with no deal. In March 2026, India said 70 per cent of crude imports came from outside the strait. The Centre for Research on Energy and Clean Air estimated 22 billion dollars in extra fuel import costs for India.

How it developed

  1. 28 February to 17 August 2026
    How it started

    The war began on 28 February 2026. A June memorandum did not hold.

    US and Israeli strikes on Iran began the war on 28 February 2026. On 2 March 2026, the IRGC announced the closure of the Strait of Hormuz. Ship traffic through the strait later fell by about 95 per cent. On 17 June 2026, the United States and Iran signed the Islamabad Memorandum of Understanding. Pakistan brokered the memorandum. The memorandum promised an end to fighting on all fronts. The memorandum gave 60 days for a final deal. Fighting resumed in July 2026. The United States restored the naval blockade on 14 July 2026. The 60-day window ended on 17 August 2026 with no deal. The conflict then turned into a standoff of sanctions and blockades.

  2. 28 August 2026
    Consequence

    Study puts India's extra fuel import cost at 22 billion dollars

    On 28 August 2026, Business Standard reported a study by the Centre for Research on Energy and Clean Air (CREA). CREA said India paid about 22 billion dollars extra for fossil-fuel imports between March and August 2026. The net extra cost across all fuels was 14.4 billion dollars, or 0.38 per cent of GDP. India paid 29 per cent more per tonne for imported LPG than expected. LPG import volumes were 26 per cent lower. India's extra cost was the third-highest after the European Union and China.

  3. 30 August 2026
    New fact

    US strikes Larak Island. Iran fires missiles at bases in Jordan.

    On 30 August 2026, US forces struck IRGC positions on Larak Island in the Strait of Hormuz. US Central Command called the strike 'limited, precise action against IRGC minelaying forces'. Hours later, the IRGC fired missiles and drones at the King Hussein and Al Azraq bases in Jordan. Jordan said air defences intercepted eight missiles. No injuries were reported at either base. On 31 August 2026, Trump told reporters the exchange was not a return to full-scale war.

  4. 1 September 2026, early hours IST
    New fact

    Two supertankers carrying Saudi oil hit while leaving the strait

    Late on 31 August 2026 (GMT), two supertankers leaving the Strait of Hormuz were struck by unknown projectiles. The Saudi-flagged Sidr was hit at 19:52 GMT, about 17 nautical miles from Khasab in Oman. The Liberian-flagged Senegal Prosperity was hit by three projectiles minutes later. Each ship carried 2 million barrels of Saudi crude loaded at Juaymah. All crew were reported safe. Brent crude rose above 92 dollars a barrel on 1 September 2026.

  5. 1 September 2026, before the strikes
    Official response

    Iran offers to honour the memorandum. US promises weekly bank sanctions.

    On 1 September 2026, Iranian President Masoud Pezeshkian spoke at the Shanghai Cooperation Organisation (SCO) summit in Bishkek. Pezeshkian said Iran would 'immediately reciprocate' if the United States returned to the memorandum. The same day, Foreign Ministry spokesman Esmaeil Baghaei said Washington had 'mistaken negotiations for dictating terms'. In Asheville in the United States, Treasury Secretary Scott Bessent said bank sanctions were likely this week and next. Bessent said the United States would also look at airline leasing companies and anyone doing business with the IRGC. Bessent said: 'We are going to economically asphyxiate this regime.'

  6. 1 September 2026, 9.30 pm IST
    New fact

    US strikes IRGC targets in southern Iran. Iran claims missile attack on Jordan base.

    At 9.30 pm Indian time on 1 September 2026, US forces began striking IRGC targets in Iran. US Central Command said the IRGC had tried to attack shipping in the Strait of Hormuz and US troops. Iran's Red Crescent said a strike killed four people and hurt over 50 at a wedding in Sirik county. Trump said Iran would be hit 'at a much harder and higher level' if Iran retaliated. The IRGC then claimed a ballistic missile attack on a US base in Jordan. Jordan said air defences intercepted 10 of 13 missiles.

Why it matters for UPSC

GS2 · International relationsGS3 · Energy securityGS1 · World geography

The story is a GS Paper 2 topic on international relations and a GS Paper 3 topic on energy security. Remember the difference between the memorandum and a final deal. The memorandum was a signed framework with a 60-day talks window. No final deal exists. Also separate a claim from a confirmed fact. Iran's missile claims and US target lists are each side's own statements. For India, note the Strait of Hormuz, crude oil dependence, LPG dependence and the extra import cost.

Key terms

Strait of HormuzThe Strait of Hormuz is a narrow sea passage between Iran and Oman. The strait joins the Persian Gulf to the Gulf of Oman. About 100 ships used the strait each day before the war. Only about five ships a day passed between 15 July and 23 August 2026. India's crude oil and LPG cargoes from Gulf countries use this strait.
Islamic Revolutionary Guard Corps (IRGC)The IRGC is a military force in Iran separate from the regular army. The IRGC has its own naval, aerospace and missile units. The IRGC naval units operate in the Strait of Hormuz. On 1 September 2026, US Central Command said the targets included IRGC air defence sites, radars and mine-laying units.
Islamabad Memorandum of UnderstandingA memorandum of understanding is a written agreement that sets a framework. A memorandum is not a full treaty. The United States and Iran signed this memorandum on 17 June 2026. Pakistan led the mediation. The memorandum promised an end to fighting and 60 days of talks for a final deal. The 60 days ended on 17 August 2026 without a deal.
Secondary sanctionsPrimary sanctions stop American people and companies from dealing with Iran. Secondary sanctions punish banks and companies from other countries that deal with Iran. A bank under secondary sanctions can lose access to the US dollar system. Bessent said bank sanctions would come this week and next. For example, a bank in India that moves money for Iran could be cut off.
Naval blockadeA naval blockade uses warships to stop ships from entering or leaving a country's ports. The United States placed a blockade on Iran during the war. The memorandum said the blockade would end within 30 days. The United States restored the blockade on 14 July 2026. Iran calls the blockade part of an economic war.
Sources (14)
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