President Donald Trump announced a 20% security fee [1] on cargo ships transiting the Strait of Hormuz and the reinstatement of a naval blockade.

The move targets one of the world's most critical maritime chokepoints. Because a significant portion of the global oil supply passes through this narrow waterway, any disruption or added cost to shipping can trigger immediate volatility in international energy markets.

Trump said the measures are a response to heightened military tensions between the U.S. and Iran. The administration aims to pressure vessels passing through the strategic waterway to ensure security compliance under the new naval mandate.

The 20% fee [1] is designed as a security levy for cargo ships. This financial requirement accompanies the return of the naval blockade, which restricts the movement of ships in and out of the region.

U.S. officials have not detailed the specific mechanism for collecting the fees or the exact parameters of the blockade's enforcement. The announcement comes as military friction between Washington and Tehran continues to escalate, creating a volatile environment for commercial shipping and international trade.

President Donald Trump announced a 20% security fee on cargo ships transiting the Strait of Hormuz.

The imposition of a security fee and a naval blockade in the Strait of Hormuz represents a significant escalation in U.S. economic and military pressure on Iran. By leveraging control over a primary global oil artery, the U.S. is attempting to shift the cost of regional instability onto commercial shipping while asserting maritime dominance. This strategy likely increases the risk of accidental military engagement and may lead to higher global fuel prices as shipping companies pass the 20% cost increase to consumers.