ABM (antiballistic missile)

ABM stands for antiballistic missile. It is a missile designed to intercept and destroy a ballistic missile. NATO's glossary of acronyms and abbreviations, AAP-15, expands ABM as "antiballistic missile" (NATO AAP-15 glossary).

The term belongs to the vocabulary of ballistic-missile defence. In NATO usage, ABM can describe the missile or the system used against ballistic missiles. It also appears in arms-control history through the 1972 ABM Treaty. Bid teams that read NATO or Canadian defence documents will meet it alongside several related acronyms, so it helps to know exactly what each one stands for.

How NATO records the term

NATO's AAP-15 glossary is the clearest reference for the expansion of ABM. NATO also records the form "Anti-Ballistic Missile" in its historical abbreviation lists, including the 1982 NATO Handbook.

For current usage, NATO maintains an official terminology database. It contains non-classified military and non-military terminology relevant to NATO and is maintained by the NATO Terminology Office within the NATO Standardization Office (NATO terminology database).

The 1972 ABM Treaty

ABM is also part of the name of a treaty. NATO identifies the ABM Treaty as having been signed by the United States and the Soviet Union in 1972 and amended in 1974 (NATO Council record, 2000). A NATO reference uses the form "Anti-Ballistic Missile" for this treaty.

In that sense, ABM refers to an arms-control agreement and not to a piece of equipment. Readers should check the context of a document to see whether it means the weapon or the treaty.

ABM, BMD and IAMD

Three acronyms often sit close together in missile-defence writing:

• ABM means antiballistic missile.
• BMD means ballistic-missile defence.
• IAMD means integrated air and missile defence.

NATO describes ballistic-missile defence as part of its integrated air and missile-defence mission (NATO integrated air and missile defence). ABM names the interceptor or system, BMD names the defensive task, and IAMD names the wider mission.

ABM is not ABDM

One acronym in Canadian defence procurement looks similar to ABM but means something different. ABDM stands for Air Battle Decisive Munitions. The Department of National Defence states that Canada joined NATO's ABDM framework on April 17, 2024. DND describes it as a NATO multinational framework that aggregates allied ammunition and missile requirements and converts them into multinational purchases (DND procurement disclosure).

ABDM is a different term from ABM. It should not be read as evidence that ABM is used inside that framework.

What it means for a supplier

Check the exact acronym in any NATO or Canadian document before you act on it. ABM means antiballistic missile, or the 1972 treaty. ABDM is the NATO munitions framework that Canada joined in 2024. A bid team that confuses the two can misread the scope of a requirement. When a document uses ABM, confirm from the surrounding text whether it means the missile, the system or the treaty, and use NATO's terminology database to confirm the standard wording.