US Tests Nuclear-Capable Minuteman III ‘Doomsday’ Missile Amid Escalating Iran War

The United States conducted a test launch of its nuclear-capable Minuteman III intercontinental ballistic missile (ICBM) as tensions continue to rise during the ongoing conflict involving Iran. The missile, often referred to as the “doomsday missile,” was launched from Vandenberg Space Force Base in California, demonstrating the operational readiness of the country’s nuclear deterrent system.

The launch took place on Tuesday night and was carried out by the Air Force Global Strike Command as part of a routine evaluation programme. Officials clarified that the test was not directly linked to the ongoing conflict in the Middle East, but the timing has drawn global attention due to the escalating military situation.

Details of the Missile Test

The unarmed Minuteman III missile, identified as test vehicle GT-255, was equipped with two test re-entry vehicles during the launch. According to military officials, the missile travelled thousands of miles across the Pacific before reaching its designated impact zone near the Marshall Islands.

The test was conducted to evaluate the performance and reliability of key components within the missile system. Military authorities stated that the data collected during the launch will help improve the readiness and operational capability of the United States’ land-based nuclear forces.

Officials explained that such tests are regularly carried out to ensure that the country’s nuclear defence infrastructure remains functional, accurate and ready if needed.

Role of the Minuteman III in US Nuclear Defence

The Minuteman III is a central part of the United States’ nuclear triad, which consists of land-based missiles, submarine-launched ballistic missiles and strategic bombers. This triad forms the backbone of the country’s nuclear deterrence strategy.

The missile has an estimated range of around 6,000 miles and can travel at speeds exceeding 15,000 miles per hour, enabling it to reach targets across continents within minutes. Its long range and high speed make it one of the most powerful strategic weapons in the US arsenal.

According to defence experts, the Minuteman III system has been tested more than 300 times over several decades as part of ongoing evaluations designed to maintain reliability and accuracy.

A similar test launch of the missile system was also conducted in November 2025, during debates in Washington regarding nuclear readiness and modernization of the US defence infrastructure.

Why the Missile Is Called the ‘Doomsday Weapon’

The Minuteman III is often called the “doomsday missile” because of its destructive potential. It can carry nuclear warheads that are up to 20 times more powerful than the atomic bomb dropped on Hiroshima during World War II.

The missile system uses solid-fuel propulsion, allowing it to remain on constant alert in underground silos and be launched within minutes if required.

Another major capability of the Minuteman III is its ability to deploy multiple independently targetable re-entry vehicles (MIRVs). This means a single missile can strike multiple targets during one launch, making it one of the most strategically significant weapons in modern warfare.

Iran Conflict Continues to Escalate

The missile test took place as the ongoing war involving Iran entered its sixth day, with missile exchanges and military strikes continuing across the region.

Reports indicate that Iran launched another wave of missiles toward Israel, triggering air-raid sirens and forcing millions of civilians to seek shelter in bomb shelters across several cities.

At the same time, political developments in the United States have added another dimension to the conflict. A proposed resolution seeking to limit the president’s authority to continue airstrikes against Iran was rejected in the Senate, allowing the ongoing military campaign to continue.

With missile exchanges intensifying, naval clashes expanding and diplomatic negotiations struggling to gain momentum, the conflict shows little sign of easing. The recent missile test has therefore attracted international attention as a signal of continued strategic readiness amid a rapidly evolving global security situation.