US sanctions Iran — The United States has announced what it calls “the toughest sanctions in history” against Iran, triggering a sharp rise in global oil prices. US Treasury Secretary Scott Bessent made the statement to reporters outside the White House in Washington, DC, on August 20, 2026, emphasizing that the new measures are intended to exert maximum economic pressure on the Iranian government.

Bessent’s remarks followed a declaration by US President Donald Trump, who described the move as the “most crushing economic operation ever taken against any country.” Trump stated that the campaign would amount to “economic warfare and isolation on an unprecedented scale.” The US administration claims that these steps are designed to deter Iran from resuming military hostilities.

Iranian Response and Market Reaction

Iranian Foreign Minister Abbas Araghchi dismissed the US measures, calling them a “diversion from America’s own crisis: unprecedented debt & surging interest costs.” Araghchi argued that Washington is “doubling down on failed policies” and predicted that the new sanctions would “only bring further defeat” for the United States.

The announcement had an immediate impact on global energy markets. The price of Brent crude oil surged, closing at $93.78 per barrel. Analysts suggest that the escalation of economic pressure on Iran, a major oil producer, is fueling concerns about potential disruptions to global supply.

This latest round of US sanctions against Iran is being closely watched in Europe and the Balkans, where energy security and price stability are key concerns. The move marks a significant escalation in the ongoing confrontation between Washington and Tehran, with potential ripple effects for international markets and diplomatic relations.