AfricaWestern Africa

πŸ‡ΈπŸ‡­ Saint Helena, Ascension and Tristan da Cunha

Saint Helena, Ascension and Tristan da Cunha is currently in the low tier. Structural baseline contributes 13.0 of 70, while recent movement adds 0.0 of 30. Civilian exposure context and Nuclear-actor exposure are the strongest current drivers.

Exposure score

13.0

Low

24h

0.0

7d

0.0

This score reflects country-level nuclear escalation exposure, not a prediction of specific strikes.

Latest publication: Apr 2, 2026, 14:00 UTC

Exposure drivers

Active Conflict Pressure

Weight 30%

Raw 3.33.3/100

Weighted contribution

+1.0

Alliance Entanglement

Weight 20%

Raw 15.015.0/100

Weighted contribution

+3.0

Nuclear-Actor Exposure

Weight 20%

Raw 20.020.0/100

Weighted contribution

+4.0

Public Infrastructure / Population Exposure

Weight 15%

Raw 33.333.3/100

Weighted contribution

+5.0

News / Rhetoric Escalation

Weight 15%

Raw 0.00.0/100

Weighted contribution

+0.0

30-day trend

Latest

13.0

30D high

13.0

30D change

0.0

025507510003/0403/0903/1403/1903/2403/2904/02

Apr 2, 2026

Exposure score 13.0

Citations

  • ATLAS Baseline Model

    Nuclear actor adjacency / exposure, Regional flashpoint proximity +2 more

    Latest source date 2026-04-04

Current assessment

Saint Helena, Ascension and Tristan da Cunha is currently in the low tier. Structural baseline contributes 13.0 of 70, while recent movement adds 0.0 of 30. Civilian exposure context and Nuclear-actor exposure are the strongest current drivers.

Current state: Low

Published snapshot: Apr 2, 2026, 14:00 UTC

Top drivers

  • Driver 1

    Civilian exposure context

    Saint Helena, Ascension and Tristan da Cunha's civilian and state-presence context adds 5 structural points.

  • Driver 2

    Nuclear-actor exposure

    Saint Helena, Ascension and Tristan da Cunha's proximity to nuclear-armed states adds 4.0 baseline points.

  • Driver 3

    Alliance entanglement

    Saint Helena, Ascension and Tristan da Cunha's alliance posture and strategic ties add 3 baseline points.