Get you up to speed: US begins blockade of Strait of Hormuz amid escalating tensions with Iran
The US blockade on the Strait of Hormuz is set to target shipping to and from Iranian ports, rather than the entirety of traffic through the waterway. Dr Andreas Krieg from King’s College London notes that the US Navy will face challenges in enforcing this blockade while contending with Iranian naval tactics.
According to Dr Katayoun Shahandeh of the University of London, “Trump’s Hormuz threat is both a coercive tactic and a real escalation risk, but it is less sweeping in practice than his rhetoric makes it sound.” Dr Andreas Krieg, Associate Professor at King’s College London, noted that the US Navy would face challenges enforcing the blockade, stating, “The closer the US Navy moves to the Strait itself, the more US Navy ships would become sitting ducks in range of Iranian drones and missiles.”
The US Navy will target shipping to and from Iranian ports as part of the blockade in the Strait of Hormuz, reportedly involving stopping, inspecting, and diverting vessels. Meanwhile, the Iranian Revolutionary Guard Corps has indicated that it will respond severely to any military vessels approaching, treating such actions as a breach of the ceasefire.
What impact will Trump’s blockade of the Strait of Hormuz have on the world? | News World
Most vessels have been stagnant since the war broke out (Picture: Marine Traffic)
‘I am not sure the Trump administration has really thought through how internationalised this waterway is and how many different flag states the US would have to deal with.’
The ceasefire agreement between Iran and the US is hanging in the balance after Donald Trump vowed to impose a blockade on the Strait of Hormuz beginning today.
The US President said he would begin the blockade soon, with Iran threatening retaliation as both sides blame each other for the failure of the ceasefire agreement.
The vital waterway is a 60-mile-wide part of the Persian Gulf, which has been at the heart of regional tensions for decades.
Although chokepoints in the shipping lane can be bypassed by using other routes, it often adds significantly to transit times.
Dr Katayoun Shahandeh of the University of London told WTX: ‘Trump’s Hormuz threat is both a coercive tactic and a real escalation risk, but it is less sweeping in practice than his rhetoric makes it sound.’
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Dr Andreas Krieg, Associate Professor at King’s College London, told WTX the US Navy will face challenges of enforcing the blockade while fighting against Iranian naval tactics.
‘The closer the US Navy moves to the Strait itself, the more US Navy ships would become sitting ducks in range of Iranian drones and missiles,’ he said.
How would the US enforce the blockade?
The military has already said the blockade would target shipping to and from Iranian ports, rather than the entirety of traffic in the Strait.
‘This tells you that even Washington seems to recognise that a full closure would be extraordinarily dangerous and difficult to sustain,’ Dr Shahandeh added.
In practice, the blockade would work by stopping, inspecting and diverting ships heading towards Iranian ports, and threatening force if faced with opposition.
Intercepted vessels accused of paying tolls to Iran would also face harsh inspection, and the US Navy would also deploy mine-clearing vessels in the area to counter Iranian sea mines.
But Dr Krieg points out: ‘The US also lacks the mine sweeping capabilities it once had in the region to deal with Iranian mining, which could commence in response to the blockade.
Dr Shahandeh points out: ‘This is a major military undertaking, not a simple switch Trump can flip and can lead to a prolonged operation and presence.
‘Trump himself has admitted it would “take a little while,” which suggests the logistics are already constraining the politics.’
‘I am not sure the Trump administration has really thought through how internationalised this waterway is and how many different flag states the US would have to deal with,’ Dr Krieg said.
Could the move backfire?
The move could place more strain on the global market (Picture: Alamy)
The US isn’t just facing military obstacles – there’s a major risk of escalation from Iran’s Revolutionary Guard Corps (IRGC), which said it would treat approaching military vessels as a ceasefire breach and respond severely.
‘US enforcement itself could trigger the wider war Trump says he wants to avoid,’ she added.
Even a limited blockade in the Strait will spark fear, insurance shocks, ship rerouting and hesitation among the world’s largest shipping firms – with some tankers already steering clear of the Strait of Hormuz.
‘Around a fifth of global oil and LNG normally moves through Hormuz, and even before enforcement properly begins, oil has jumped sharply, and markets have wobbled,’ Dr Shahndeh said.
‘Brent crude oil is already above $100 per gallon, and global financial markets continue to be under pressure after the talks collapsed and the blockade was announced.’
‘Iranians, while vulnerable to such a blockade, have a much higher threshold of pain than the United States, the Gulf states or the world economy,’ Dr Krieg said.
‘Iranians are likely going to sustain this pressure for much longer than the US. It would take months for Iran to feel the pain, while the world economy will face a major crisis.’
A further strain on relationships with US allies in the region
American allies in the Gulf could be unhappy with Trump’s move (Picture: Reuters)
The US blockade in the Strait could further strain relationships with allies in the Gulf, who want Iran contained but also want shipping lanes to remain open.
Dr Shahandeh agrees: ‘Trump may present this as a show of strength, but it also risks inflicting more pain on the global economy, on US consumers, and on his own domestic political position.’
Dr Krieg told WTX that Trump appears to be responding to an Iranian blockade of the Strait with a blockade of his own.
‘This means that the Strait remains closed, affecting the economies of the Gulf states, which rely on trade to run smoothly through the Strait,’ he said.
‘It will aggravate anti-Trump sentiments across the Gulf as there is very little trust in his decision-making abilities. The feeling of abandonment by the US is likely to get stronger.’
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