President Donald Trump announced Monday that the United States will reinstate a blockade of the Strait of Hormuz [1].

The move targets one of the world's most critical oil transit chokepoints, potentially disrupting global energy markets and increasing shipping costs during a period of heightened regional tension.

Trump said the U.S. will require a 20% reimbursement or charge on all cargo shipped through the waterway [1], [2]. This financial measure is intended to recoup costs associated with the blockade of Iranian ports [3].

The administration is implementing these measures to pressure Iran following recent tanker attacks [3], [4]. The strategy aims to limit Iranian maritime capabilities and penalize the government for its actions against commercial shipping [4].

Reports on the nature of the 20% figure vary among sources. Some reports describe the payment as a reimbursement to the U.S. government [2], while others characterize it as a direct charge on cargo [1].

The Strait of Hormuz is a narrow waterway connecting the Persian Gulf with the Gulf of Oman. Because a vast majority of the world's exported oil passes through this corridor, any U.S. naval presence or restriction on transit typically triggers immediate volatility in crude oil pricing [3].

Trump said the action is a direct retaliation for the second Hormuz tanker attack [4]. The U.S. Navy is expected to oversee the enforcement of the blockade and the collection of the cargo charges [1].

“the United States will reinstate a blockade of the Strait of Hormuz”

By imposing a financial levy on transit through the Strait of Hormuz, the U.S. is shifting its strategy from traditional sanctions to a direct economic tax on maritime trade. This approach not only seeks to degrade Iran's economic stability but also tests the willingness of global shipping companies to absorb higher costs in exchange for U.S. naval protection.