US forms Task Force Iron Gate to choke Iran’s land trade routes and offers a $20 million reward on its nuclear program

The US military is moving to expand its naval blockade of Iran by restricting the country’s land commerce^1,2,3. US Central Command said on Saturday that it had set up a task force to curb weapons transfers across Iran’s land borders^6,11. CENTCOM described the unit, called Task Force Iron Gate, as aimed at Iran’s illegal weapons and revenue routes^5,13.

The command said the task force would disrupt Iran’s land-based supply routes⁷ and block overland weapons transfers⁸. The effort extends the blockade beyond the sea to ground transit routes and the Caspian corridor⁹. The announcement came on Saturday from the command led by Admiral Brad Cooper^6,12.

Central Command also said US forces had disabled a cargo vessel in the Gulf of Oman that was attempting to violate the blockade^18,20. The St Kitts and Nevis-flagged ship had visited an Iranian port, according to CENTCOM¹⁹.

Why it matters to investors

Widening the blockade from sea lanes to land borders raises the reach of US pressure on Iranian trade. The land campaign builds on the naval blockade that CENTCOM already runs², and it reaches into ground transit routes and the Caspian corridor⁹.

Washington is pairing the military step with financial measures. The US is offering a reward of up to $20 million for information on Iran’s nuclear program^14,15,16. “Treasury will pursue and disrupt the Iranian regime’s financial channels anywhere in the world,” Treasury Secretary Scott Bessent said¹⁶, as the US sanctioned Canadian firms over Iran transactions¹⁷.

Tehran’s posture complicates the picture. The Islamic Revolutionary Guard Corps says underground military complexes allow missile production to continue even under heavy bombardment⁴. Those are Iranian claims that the coverage in hand does not independently confirm.

There is also a diplomatic track. Iranian negotiators had discussed with mediators a proposal to reopen the Strait of Hormuz within two days once the US met its seven conditions¹⁴.

What to watch

The timeline is one factor. Aides reportedly told President Donald Trump that he has until the January swearing-in of the new Congress to attack Iran³.

Enforcement is another. The disabling of the cargo ship in the Gulf of Oman^18,19 shows the blockade is being applied to merchant traffic, and the land task force⁶ will show whether CENTCOM can extend that reach to overland routes⁹.

The mediation proposal on Hormuz¹⁴ and the reward offer¹⁵ run in parallel with the military pressure, and how Tehran answers both will shape the outlook for shipping through the region^1,2.