The US is ready to launch what it has labeled the ‘toughest sanctions in history’ against Iran, according to Treasury Secretary Scott Bessent and former President Donald Trump. The new measures are framed as an rare campaign of economic isolation designed to compel Iran and its trade partners into compliance, according to multiple reports. On Wednesday, Trump announced what he called the ‘most crushing economic operation’ against Iran on Truth Social, warning that any country aiding Tehran would face ‘tremendous economic consequences.’

Economic Sanctions and Naval Blockade Intensify

Iran has long been under sweeping US sanctions targeting its oil, shipping, and financial sectors. Now, the administration is reportedly expanding these measures, with Trump describing the upcoming actions as an ‘economic D-Day.’ The former president accused Iran of failing to take a previous opportunity to make a deal and promised ‘economic warfare and isolation on an historic scale.’

Bessent, speaking to CNBC, reinforced this message, stating that the US will apply the ‘toughest sanctions in history’ and that Iran will ‘collapse this government.’ He warned that the international community must choose between cooperation with the US or facing economic penalties if they continue to trade with Iran. ‘We’re going to them and saying: You’re either with us or against us,’ he said.

Oil Market Reacts to Geopolitical Tensions

West Texas Intermediate (WTI) crude oil prices have shown mixed performance in the wake of these developments. On Monday, WTI slipped below $85.00 as traders took profits ahead of the expected sanctions, according to tmgm.com. By Tuesday, the benchmark steadied near $86.00, reflecting the market’s sensitivity to Middle East developments. Analysts at Commerzbank noted that ‘developments surrounding the Strait of Hormuz remain the focus of the energy markets,’ with geopolitical risks continuing to dominate sentiment.

The Strait of Hormuz is a critical oil transit corridor, and vessel traffic through the region has remained significantly below historical averages. Iranian oil shipments have also faced severe disruptions. According to US Central Command (CENTCOM), forces have redirected 67 merchant ships, disabled three, and boarded two others traveling to or from Iranian ports while enforcing a naval blockade. This blockade is part of the broader strategy to restrict Iran’s access to global energy markets.

Iran Dismisses Sanctions as Ineffective

Tehran has dismissed the impending US measures as another ineffective attempt to exert economic pressure. Iranian officials emphasized that the country has decades of experience managing blockades and possesses the resilience to sustain its economy and international trade relationships. Iranian Foreign Minister Abbas Araghchi condemned the US threat of new economic sanctions, describing the proposed measures as ‘illegal and inhumane.’

Meanwhile, global energy markets remain on edge. Diesel inventories are particularly tight, reinforcing the supportive backdrop for oil prices. Commodity strategists at Commerzbank add that ‘since no other major reports are scheduled, attention is also likely to turn to inventory trends.’ The absence of efforts from both the US and Iran to resume talks regarding the reopening of the Hormuz Strait has further fueled uncertainty among traders.

As the US ramps up its economic pressure on Iran, the broader implications for global trade and energy markets remain to be seen. The administration has signaled a clear stance: any country that supports Iran financially or logistically will face severe economic consequences. The coming weeks will test whether this strategy will succeed in isolating Iran or provoke further escalation in the region.