Iran’s IRGC Navy warns vessels to avoid Strait of Hormuz as closure escalates global tensions

The Islamic Revolutionary Guard Corps Navy has issued a direct warning to all maritime vessels: stay away from the Strait of Hormuz. The announcement, made on June 20, came after Iran declared the critical waterway closed until specific conditions are met, including the withdrawal of Israeli and US forces from the region.

Roughly 20-25% of global oil trade passes through this narrow chokepoint between Iran and the Arabian Peninsula.

What triggered the closure

Iran framed the move as a direct response to Israeli military operations in Lebanon. Tehran views those actions as violations of an existing ceasefire agreement brokered with the US.

The IRGC didn’t mince words. Statements disseminated through maritime channels explicitly threatened to target any vessels that defied the closure orders.

The timing is particularly jarring because tanker traffic through the strait had actually been increasing in recent weeks. A mid-June deal between involved parties was supposed to ease tensions and normalize shipping through the waterway.

Adding to the confusion: the US and Iran can’t even agree on whether the strait is actually closed. Iranian authorities maintain that the waterway is fully shut down. US officials contest that narrative, suggesting the strait remains operational.

The crypto angle no one expected

Iran has previously accepted Bitcoin and stablecoins like USDT as payment for transit tolls during periods of strait disruption. These crypto tolls have been priced at roughly $1-2 million per vessel.

When traditional banking channels are blocked by international sanctions, crypto offers Iran a workaround. Stablecoins pegged to the US dollar provide the price stability needed for large commercial transactions, while Bitcoin offers a degree of censorship resistance that the SWIFT banking network simply doesn’t.

Market ripple effects

Previous disruptions in the Strait of Hormuz during 2026 have already produced sharp oil price swings and left tankers stranded.

There’s also the demand side to consider. If Iran continues or expands its practice of accepting crypto for maritime tolls, that creates genuine transactional demand for Bitcoin and USDT that’s completely independent of speculative trading. Every vessel paying a $1-2 million crypto toll is real buying pressure.

Watch stablecoin flows in the region. On-chain data tracking large USDT transfers linked to Middle Eastern wallets could provide early signals about whether crypto-based toll collection is ramping up.

Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.