Axis 4 — defense

Defense Industrial Dependency

Concentration of major conventional arms imports across supplier countries and capability blocks.

Version: v0.1Status: FROZENUnit: SIPRI TIVMaterialized: Yes

Cross-EU Statistics

Countries Scored

out of EU-27

Min (Most Diversified)

0.0000

Slovakia

Max (Most Concentrated)

1.0000

Malta

Mean

0.5732

EU-27 average

Std Deviation

0.2257

Cross-country dispersion

Range

1.0000

Max − Min spread

Distribution of HHI scores across all scored EU member states for this axis.

This axis is computed from 2 data channel(s). Each channel represents a distinct trade-flow or dependency dataset.

Ch. A: Aggregate Supplier Concentration

SIPRI Arms Transfers Database

Ch. B: Capability-Block Weighted Concentration

SIPRI Arms Transfers Database

[MEDIUM]SIPRI TIV is a volume indicator, not a financial value. Comparability across weapon types is approximate.
[MEDIUM]SIPRI covers major conventional weapons only. Small arms, ammunition, MRO, and sustainment contracts are excluded.
[LOW]Six-year delivery window (2019–2024) may include legacy contracts not reflecting current strategic posture.
[LOW]Regex-based weapon classification may cause edge-case misclassification across capability blocks.
[LOW]Countries with no bilateral SIPRI supplier entries are assigned score=0 (zero external concentration). This reflects licensed production, joint EU procurement, or domestic manufacturing.

#	Country	Score	Δ Mean	Classification	Outlier
1	MaltaMT	1.0000	+0.4268	Highly Concentrated	●
2	NetherlandsNL	0.9596	+0.3864	Highly Concentrated	●

This axis measures structural concentration (HHI-based) in the defense industrial dependency domain. It does not capture:

High concentration ≠ high vulnerability. Contextual interpretation required.