The United States is weighing the use of its heaviest non-nuclear weapon against Iran, prompting a direct warning from Tehran over regional energy infrastructure, detikNews reported on October 19, 2026. The geopolitical escalation ties together threats of heavy ordinance deployments, ongoing nuclear negotiations, and shifting military postures across the Middle East.
Washington Weighs Non-Nuclear Strikes as Defense Secretary Issues Ultimatum
The strategic friction intensified when US officials considered deploying the GBU-43/B Massive Ordnance Air Blast, commonly known as the “mother of all bombs,” to target Iranian energy infrastructure and nuclear sites. That discussion runs parallel to an explicit ultimatum delivered by US Secretary of Defense Pete Hegseth on October 17 at the University of Tennessee, where he demanded that Tehran abandon its nuclear ambitions at the negotiating table or face rapid military destruction, according to reporting from ANTARA.
Hegseth accused Iran of expanding its conventional missile arsenal and funding regional armed groups, including Hezbollah and the Houthis in Yemen, while attempting to deter foreign strikes. The diplomatic pressure campaign under Donald Trump also links broader security goals in the Western Hemisphere, such as operations targeting Venezuelan oil resources and curbing rival influences, with the administration’s Middle East strategy.
Tehran Prepares Missile Retaliation
Responding to Washington’s threats, senior Islamic Revolutionary Guard Corps (IRGC) commander Brigadier General Mohammad Reza Naqdi announced that Iran has prepared what he termed the “father of Iranian missiles” during a public address in Sari on October 18, as reported by detikNews. Naqdi warned that any miscalculation by the US or Israel would place all aggressor energy infrastructure and investment assets in the region within operational range.
The military standoff follows a severe exchange of hostilities earlier in the year. CNN Indonesia reported that US and Israeli airstrikes in late February resulted in the death of Ayatollah Ali Khamenei and other top defense officials, after which Iran retaliated by targeting US bases in the Middle East and closing the Strait of Hormuz.
Trump Acknowledges Leadership Casualties Amid Strait of Hormuz Shipping Claims
President Trump acknowledged in an October 12 rally in Youngstown, Ohio, that US and Israeli actions resulting in the death of Ayatollah Ali Khamenei might have gone too far due to the unpredictability of negotiations, according to CNN Indonesia. Trump maintained that Washington has crippled Iran’s naval and air capabilities, claiming that 159 Iranian naval vessels have been destroyed.
In contrast to Iranian threats against maritime routes, commander of the US Central Command (CENTCOM), Brad Cooper, released a video message on October 16 stating that 400 ships and 100 million barrels of oil had traversed the Strait of Hormuz in the week prior, despite ongoing security disruptions, as noted by Minh Duc.
Frequently Asked Questions About the US-Iran Escalation
What specific weapon prompted Iran’s “father of Iranian missiles” threat?
The threat was a direct response to US considerations of deploying the GBU-43/B Massive Ordnance Air Blast, a 14-ton conventional non-nuclear bomb known as the “mother of all bombs.”
Who delivered the ultimatum regarding Iran’s nuclear program in October 2026?
US Secretary of Defense Pete Hegseth delivered the ultimatum on October 17, 2026, warning Tehran to choose between a nuclear agreement or swift military destruction.
What shipping volume did CENTCOM report through the Strait of Hormuz amid the conflict?
CENTCOM commander Brad Cooper reported on October 16, 2026, that 400 ships carrying 100 million barrels of oil had passed through the Strait of Hormuz in the preceding week.
Iran will soonest have to make a choice, whether they will leave those ambitions at the negotiating table or face the kind of devastation that America can cause and will do quickly if necessary,
Pete Hegseth stated.
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