Trump Ends Iran Deal and Escalates Naval Blockade

President Donald Trump announced on August 18, 2026, that the United States will not extend a 60-day memorandum of understanding with Iran. Trump asserted that Iran is "in big trouble" and demanded the country "put up the white flag of surrender," citing 300% inflation and a defeated military.

Simultaneously, the U.S. Navy has maintained a blockade in the Strait of Hormuz, reducing Iranian oil exports to nearly zero. Treasury Secretary Scott Bessent launched Operation Economic Fury, targeting cryptocurrency and money-changers to achieve economic isolation he described as something "never been seen in the history of economic isolation on a country." The U.S. is also pursuing sanctions to prevent Iran from repatriating oil revenues held in China.

Iranian President Masoud Pezeshkian admitted the blockade has severed import routes and caused severe gasoline shortages. Majid Reza Hariri, head of Iran’s Chamber of Commerce with China, reported that shifting to overland shipping has added approximately $18 billion in annual costs. In response, Parliament Speaker Mohammad Bagher Ghalibaf declared the Strait of Hormuz will remain closed until the U.S. lifts the blockade and releases frozen assets.

Former Treasury official Miad Maleki warned that the fiscal shock could destabilize the Iranian regime by autumn when government and security force payments fall due. Meanwhile, the blockade has impacted global markets, pushing Brent crude to approximately $90 per barrel and U.S. gas prices above $4 per gallon.