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Classification groups of key explosive munitions used in conflicts

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The GBU-39 Small Diameter Bomb (SDB) is a precision-guided aerial bomb in the 250-pound weight class, developed and predominantly produced in the United States.
GBU-39 series
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The nominal diameter of a projectile. For most modern munitions, this is expressed in millimetres (e.g. 82 mm mortar projectile), but older artillery gun projectiles may be described in inches.

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GBU-39 series
The GBU-39 Small Diameter Bomb (SDB) is a precision-guided aerial bomb in the 250-pound weight class, developed and predominantly produced in the United States. The GBU-39 has been produced in several variants with differing warhead configurations, most containing 16–17 kg of explosive composition - a relatively small 'payload' for an air-delivered bomb. The weapon is fitted with a wing assembly that permits longer, flatter ‘gliding’ attack vectors - giving it a range of more than 110 km from the release point. It has four tail-fin control surfaces to adjust the munition’s trajectory in flight in response to GPS and inertial guidance, thus improving precision.

Collection

The Iran War 2026

Verified munition images from all parties to the regional conflict sparked by U.S. and Israeli strikes on 28 February, 2026

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6 February 2026

‘Fragments’ magazine highlights OSMP importance for civilian protection

17 April 2025

Gazans survive among unexploded bombs

6 September 2024

How GBU-39 bombs became Israel’s ‘weapon of choice’

Collection

Американські боєприпаси використані в Ємені, 2025

Перевірені зображення американських боєприпасів під час бомбардувальної кампанії адміністрації Трампа проти підтримуваної Іраном бойової та політичної групи хуситів

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Collection

Ірансько-ізраїльський конфлікт. Червень 2025 року

Десятки перевірених зображень боєприпасів, використаних Іраном та Ізраїлем під час конфлікту між Ізраїлем та Іраном у червні 2025 року

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Collection

Ізраїль і Газа 2023 – 2026

7 жовтня 2023 року бойовики ХАМАС прорвали міцно укріплений кордон між Ізраїлем і Сектором Газа, атакувавши численні міста і села. За повідомленнями, в Ізраїлі загинуло понад 1000 осіб, а понад 250 було взято в заручники і перевезено до Гази

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Collection

Iran-Israel conflict June 2025

Dozens of verified images of munitions used by Iran and Israel during the June 2025 Israel-Iran conflict

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OSMP1350
Air-Delivered Bomb Yemen GBU-39 series
Analyst Note:
This image shows various remnants from GBU-39 air-delivered bombs, including two fuze wells. Each GBU-39 has only a single fuze well, indicating that this picture shows the remnants of at least two different GBU-39 bombs. (ARES)

Collection

US munitions used in Yemen 2025

Verified images of U.S. munitions during the Trump administration’s bombing campaign against the Iranian-backed Houthi militant and political group

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Interactive

GBU-39 Interactive Model

An interactive 3D model explaining key components of the GBU-39 – a common US-made air-delivered bomb

OSMP897
Air-Delivered Bomb Ukraine GBU-39 series
Analyst Note:
In this image, two GBU-39 guided air-delivered bombs can be seen in their shipping containers, with only the nose and the tail actuation section of the munitions clearly visible. Distinctive packaging such as this can sometimes be used as contextual evidence for the presence of specific munitions. (ARES)
OSMP820
Air-Delivered Bomb Lebanon GBU-39 series
Analyst Note:
Labels on munition remnants can provide a host of useful data, including the model designation (in this case, “GBU-39/B”), part number (PN; (“70P998100-1003”), National Stock Number (NSN; “1325-01-526-8728”), serial number (SN; illegible), and Department of Defense Identification Code (DODIC; “EC53”). These codes, and others like them, can often be searched for in databases or provided to technical specialists for further interpretation. (ARES)
OSMP696
Air-Delivered Bomb Ukraine GBU-39 series
Analyst Note:
In this image, two GBU-39 Small Diameter Bombs are attached to a BRU-61/A bomb rack. The Ukrainian Air Force adapted this American-designed bomb rack to fit their Soviet-designed Mikoyan MiG-29 fighter aircraft. The BRU-61/A can carry up to four GBU-39 air-delivered bombs. (ARES)
OSMP554
Air-Delivered Bomb Palestinian Territories GBU-39 series
Analyst Note:
The circled remnant is the hardened steel nosecone of the GBU-39, which renders the munition capable of penetrating more than 3 feet (approx. 1 metre) of steel-reinforced concrete. It is one of several components that often survives the detonation of the munition. (ARES)
OSMP537
Air-Delivered Bomb Palestinian Territories GBU-39 series
2 Analyst Notes:
This munition is assessed to be one of the Small Diameter Bomb (SDB) I variants (GBU-39 series), rather than one of the SDB II 'StormBreaker' (GBU-53 series) munitions, on the basis of contextual information. 'Small Diameter Bomb' is the manufacturer's terminology, whilst 'GBU-39' is the U.S. Air Force designation (also used by many other operators). (ARES)

Collection

Israel and Gaza 2023 – 2026

On 7 October 2023, Hamas militants breached the heavily-fortified border separating Israel and the Gaza Strip, attacking numerous towns and villages. More than 1,000 people in Israel were reported killed, with more than 250 taken hostage and moved to Gaza. In response, Israel has launched one of its largest military operations of recent decades, seeking […]

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