The US Is Threatening to Punish Anyone Who Trades With Iran — Here's What's Going On
US Treasury Secretary Scott Bessent announced on August 24, 2026, that the United States will impose severe sanctions on any country or company that keeps doing business with Iran The Guardian. The campaign is called 'Operation Economic Outcast.' Sanctions are penalties a government uses to punish another country or company by cutting off trade or financial access.
Bessent described the effort as an 'unprecedented campaign' and compared it to the D-day Normandy landings during World War II The Guardian. 'No entity facilitating transactions that turn Iranian oil into money is above the reach of US sanctions,' Bessent stated The Guardian. He said the Treasury has identified companies still dealing with Iran and that each would receive a deadline to cut ties or face punishment. Any company found helping Iran launder money — that is, move illegally earned money through the financial system to make it look legitimate — would be removed from the US dollar system The Guardian. Being cut off from the US dollar means a bank or company can no longer use the world's most important currency for international payments.
President Donald Trump is making direct phone calls to world leaders with specific requests to stop interacting with the Iranian regime The Guardian. Trump said the US would launch what he called the 'most crushing economic operation ever taken against any country' against Iran CNBC. The Trump administration threatened 'tremendous economic consequences' on any country that does business with Iran The New York Times.
The announcement came nearly six months after a US-Israeli military attack on Iran that killed Supreme Leader Ali Khamenei The Guardian. After that strike, Iran's hardliners took firmer control of the government, declared the closure of the Strait of Hormuz, and attacked ships that ignored the declaration The Guardian. The Strait of Hormuz is a narrow strip of water between Iran and Oman through which a large share of the world's oil supply normally travels. Trump responded with a counter-blockage on Iranian oil exports through the Strait The Guardian. US attacks have severely weakened Iran's economy and conventional military forces, but Tehran still has enough missiles and drones to strike back Reuters. Iranian armed forces chief of staff Maj Gen Ali Abdollahi said Iran's retaliation could take the form of land, sea, or air operations, or cyber-attacks The Guardian.
China's embassy in Washington said sanctions and pressure do not help resolve the Iran issue and called on parties to resolve it through political and diplomatic means The Guardian. China purchased an estimated 80% of Iran's shipped oil in the preceding year, making it Iran's largest trading partner The Guardian. The United Arab Emirates announced it was suspending trade ties with Iran in apparent anticipation of the US measures The Guardian.
The US has a long history of using sanctions against Iran. The United States has imposed restrictions on activities with Iran under various legal authorities since 1979, following the seizure of the US Embassy in Tehran US State Department. In 1995, Washington imposed a ban on trade with Iran by US companies, including overseas trade in Iranian oil and US investment in Iran US State Department. US persons, including US companies, continue to be broadly prohibited from engaging in transactions or dealing with Iran US State Department.
The current escalation builds on recent actions. In February 2026, the White House issued a presidential action titled 'Addressing Threats to the United States by the Government of Iran,' imposing sanctions to advance the goal of applying financial pressure on the Iranian regime The White House. Since February 2025, OFAC has sanctioned more than 1,000 Iran-related persons, vessels, and aircraft as part of the Treasury's campaign US Treasury. OFAC is the Treasury Department office that manages US sanctions programs. The State Department has sanctioned numerous entities, individuals, and vessels that form the backbone of Iran's illicit oil economy US State Department. OFAC published a press release titled 'Treasury Disrupts Iranian Regime's Strait of Hormuz Extortion Network' alongside Iran-related designations dated July 29, 2026 OFAC. OFAC also issued Iran General License X covering Iranian-origin items, effective through August 21, 2026 OFAC.
The broader context here is a deliberate shift from primary to secondary sanctions. Primary sanctions forbid American companies from trading with Iran. Secondary sanctions go further: they threaten foreign companies — even ones based entirely outside the US — with losing access to the US dollar system if they continue doing business with Iran. Because most international payments flow through the US dollar, this threat carries real weight. Bessent's D-day comparison and the 'unprecedented campaign' framing signal an intent to apply maximum pressure rather than gradually increasing it. The UAE's early suspension of trade ties shows the deterrent is already working. China's diplomatic pushback, paired with its purchase of 80% of Iran's shipped oil, makes Beijing the key test case: will Washington actually enforce these sanctions against a major economic power, or will Chinese companies be effectively off-limits? Iran's retaliation options, especially cyber-attacks, add a digital risk layer that banks and companies must prepare for. The combination of financial pressure, blocked shipping lanes, and the threat of retaliation creates a volatile situation that could escalate well beyond the sanctions themselves.
