Profile
- Type
- Air-launched standoff cruise missile
- Conflict side
- United States
- Origin
- United States
- Service note
- 2009-present service; JASSM-ER entered service in 2014
Artillery
AGM-158 JASSM
The AGM-158 Joint Air-to-Surface Standoff Missile is Lockheed Martin's low-observable, subsonic air-launched cruise missile family built to let bomber and fighter aircraft strike heavily defended, high-value targets from outside many air-defense envelopes. Its documented combat use includes baseline AGM-158A launches from B-1B bombers in the 2018 Syria missile strikes, AGM-158B use during Operation Inherent Resolve, and large-scale JASSM-family employment during Operation Epic Fury against Iran.
2018 Syria Missile StrikesUnited States-led coalitionOperation Inherent ResolveU.S.-led coalition and partner forcesUnited States-Iran ConflictUnited States
- Built in
- United States
Service History
- In service
- Full-rate production approved in the mid-2010s; AGM-158B/B-2/B-3/D family continues in procurement and upgrade
- Used by
- United States Air Force
- Wars
- 2018 Syria Missile Strikes, Operation Inherent Resolve, United States-Iran Conflict
Production History
- Designer
- Lockheed Martin
- Designed
- AGM-158B extended-range variant designated in 2002
- Built in
- United States
- Produced
- AGM-158B production from the 2010s; AGM-158B-2 cut-in planned for later production lots
- Variants
- AGM-158B JASSM-ER, AGM-158B-2 JASSM-ER obsolescence and processor upgrade, AGM-158B-3 with M-Code GPS receiver, AGM-158D with weapon data-link upgrades
- Developed from
- AGM-158A JASSM
Specifications
- Range
- Greater than 500 nautical miles for JASSM-ER
- Warhead
- 1,000-pound-class hardened penetrating blast-fragmentation warhead
- Guidance
- GPS/INS midcourse guidance with imaging infrared terminal seeker in the JASSM family
- Launch platforms
- Integrated or planned across bomber and fighter aircraft including B-1B, B-52, F-15E, F-16, and F-35-family integration efforts
- Flight profile
- Low-observable, subsonic, autonomous standoff cruise missile
Conflict Usage
- 2018 Syria Missile Strikes
- Side: United States-led coalition
U.S. Air Force B-1B bombers released 19 baseline AGM-158A JASSM missiles during the April 2018 allied strikes on Syrian chemical-weapons facilities.
- Operation Inherent Resolve
- Side: U.S.-led coalition and partner forces
U.S. aircraft used AGM-158B JASSM missiles, along with guided bombs and other weapons, to destroy Abu Bakr al-Baghdadi's compound in Syria after the October 2019 raid.
- United States-Iran Conflict
- Side: United States
CSIS assessed that U.S. forces used large numbers of JASSM-family missiles in Operation Epic Fury, including reports of roughly 1,100 JASSM-ERs expended in strikes on Iran.
AGM-158 JASSM Images
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Abu MahdiLong-range anti-ship cruise missileAbu Mahdi is an Iranian long-range naval cruise missile associated with the Soumar/Hoveyzeh cruise-missile family and adapted for maritime strike. Iranian sources describe it as a domestically built anti-ship system for fixed or mobile launchers, while CSIS lists the Abu Mahdi variant with a reported 1,000 km range and turbojet propulsion.Sources
JASSMPublisher: Lockheed Martin | Note: Supports manufacturer and product-family background for JASSM and JASSM-ER. | Accessed: 2026-06-20Joint Air-to-Surface Standoff Missile (JASSM) Selected Acquisition ReportPublisher: Office of the Secretary of Defense | Note: Supports JASSM-ER mission, range, warhead, variants, production, and integration background. | Accessed: 2026-06-20JASSM / JASSM ERPublisher: CSIS Missile Threat | Note: Supports general JASSM/JASSM-ER background, guidance, range comparison, and operator context. | Accessed: 2026-06-20JASSM-ER nears operational employmentPublisher: U.S. Air Force | Note: Public-domain Air Force image and caption for a JASSM-ER release. | Accessed: 2026-06-20AGM-158 JASSM cruise missilePublisher: Wikimedia Commons | Note: Public-domain U.S. Air Force missile image used in the gallery. | Accessed: 2026-06-20Significant FirepowerPublisher: Air Force Global Strike Command | Note: Supports direct conflict use for 2018 Syria Missile Strikes by documenting two B-1B Lancers releasing 19 JASSM missiles on the Barzah mission. | Accessed: 2026-06-20JASSMs Used to Level Baghdadi's Compound in SyriaPublisher: Air & Space Forces Magazine | Note: Supports direct conflict use for Operation Inherent Resolve by documenting AGM-158B JASSM missiles used to destroy al-Baghdadi's compound in Syria. | Accessed: 2026-06-20Last Rounds? Status of Key Munitions at the Iran War CeasefirePublisher: Center for Strategic and International Studies | Note: Supports direct conflict use for United States-Iran Conflict by documenting JASSM/JASSM-ER employment and reported expenditure during Operation Epic Fury. | Accessed: 2026-06-20