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What are JASSM-ER cruise missiles? Long-range weaponry deployed by US for Iran war with 930 km reach

This weapon system, which costs $1.5 million, is designed to destroy both fixed, and relocatable targets from a significant stand-off distance.

Updated on: Apr 5, 2026, 13:48:49 IST
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The US-Iran war could see another round of escalation soon, with the United States reportedly deciding to deploy more long-range missiles from its global stockpiles to bases used for operations against Iran.

A US Air Force B-52H Stratofortress bomber aircraft is preparing to land at an undisclosed location on March 3, 2026. (AFP)
A US Air Force B-52H Stratofortress bomber aircraft is preparing to land at an undisclosed location on March 3, 2026. (AFP)

The US military is set to commit nearly 82% of its JASSM-ER long-range missile inventory, leaving only about 425 missiles available elsewhere around the world, Bloomberg reported.

The development comes after Donald Trump warned Iran last Wednesday to accept his proposed peace deal or face the consequences of US military action. He issued a fresh warning late on Saturday, saying Iran now has 48 hours to make a deal or open up the Strait of Hormuz.

“Remember when I gave Iran ten days to MAKE A DEAL or OPEN UP THE HORMUZ STRAIT. Time is running out - 48 hours before all Hell will reign down on them. Glory be to GOD! President DONALD J. TRUMP,” he wrote on Truth Social.

All about JASSM-ER cruise missiles

Here, the focus is on the JASSM-ER (Joint Air-to-Surface Missile–Extended Range), which provides significant long-range, precision strike capability for air-to-ground missions.

Also Read | Dozens of aircraft, deception effort: How US rescued airman from downed F-15 jet in Iran

This weapon system, which costs $1.5 million, is designed to destroy high-value, well-defended, fixed, and relocatable targets from a significant stand-off distance. It enables aircrews to remain outside the reach of hostile air defence systems without compromising on lethality or operational range.

Key features include:

Below are the key features of the JASSM-ER missiles, as listed on the manufacturer's website.

1. Range: Greater than 500 nautical miles (approximately 930 km)

2. Integration: Compatible with fighter jets like F-15E, F-16, and bomber jets like B-1B, B-2, and B-52H, offers high precision.

3. Warhead: 1,000-pound penetrating blast-fragmentation warhead.

How many of these missiles have US used so far in Iran war?

In the first four weeks of the war, US operations have consumed more than 1,000 JASSM-ER missiles, according to a person familiar with the matter who spoke on condition of anonymity due to the sensitivity of the issue, said a Bloomberg report.

The source added that US aircraft also fired 47 missiles during a raid targeting Venezuelan President Nicolas Maduro, as per the Bloomberg report. However, committing such a large number of JASSM-ER missiles to the Iran conflict does not necessarily mean all of them will ultimately be used.

 
ABOUT THE AUTHOR
Shubham Pandey

Shubham Pandey works as Chief Content Producer at the Hindustan Times online desk, where he writes news articles, explainers, and features with a focus on audience engagement, traffic growth, and real-time storytelling. With over a decade of experience across journalism, digital newsrooms, and strategic communications, he brings a strong understanding of online journalism, particularly in leveraging SEO, search trends, and live blogs to drive sustained reader engagement. Previously, he led the sports team at Zee News English, strengthening editorial operations while delivering measurable growth in readership. His reporting experience includes assignments with Firstpost, where he covered sports with a strong narrative focus. Shubham has worked across both startups and large media organisations, including building a sports website from the ground up in a startup environment—demonstrating versatility and leadership. His stint as Senior Account Manager at Edelman India further expanded his expertise in strategic communications, brand storytelling, and reputation management. Across roles, he specialises in content planning, writing, and crafting credible narratives for diverse audiences. He has collaborated with former international cricketers Cheteshwar Pujara, Nick Knight, and Danny Morrison to create compelling, high-impact sports content, blending editorial depth with mass appeal. When he is not writing news or watching sports, he enjoys exploring films from around the world.

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