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Tonga

Tonga has a Calm pressure reading, in the lowest quarter.

🟢 Calm

15 / 100

#187 of 206

Chance of a conflict escalation in Tonga in November or December 2026: 0.5% · remote

Chance of a conflict escalation in Tonga in November or December 2026

Government attribution notice published 26 October 2026

What counts
In November or December 2026, organised violence on the territory of Tonga, or with Tonga as an active party, must cause at least 25 battle-related deaths in a calendar month and at least twice the monthly average of the preceding three months. A conflict continuing at a steady high intensity does not meet this escalation threshold.
Months measured
the whole of November 2026 and the whole of December 2026.
Decided by
UCDP Candidate Events data (Uppsala Conflict Data Program), best estimate of battle-related deaths, monthly release. The question will be resolved by 5 Feb 2027 if the required UCDP data are available.
Resolution convention
For records spanning calendar months, deaths are allocated in proportion to inclusive calendar days. Events not assigned to a territory under the frozen UCDP place table are excluded from both the target month's total and the average of its preceding three months. Active party means the country's government is coded as a side by UCDP. Certain active-party attribution is retained, and each event is counted once per country.
Published
25 Oct 2026
Our estimate
0.5% · remote
If data are unavailable
If the required UCDP data are unavailable by 5 Feb 2027, the question is recorded as Unresolved.

Earlier issues in the forecast record

22 Oct 2026 · October or November 2026

24 Oct 2026 · November or December 2026

Population103.7k
CapitalNuku'alofa
Area747 km²
GDP~$679M (2025)
CurrencyTOP
LanguagesEnglish, Tongan
L1 Identity
n/a · identity, no pressure reading
L2 Economy
68.75
L3 Politics
35.75
L4 Events
62.1
L5 Information
53.77
L6 Society
72.33

Layer readings: method v1.1, from each layer's documented record, same 0-100 scale as country score. Snapshot 28 Oct 2026.

Since 1946

Highest decade mean 78.3 (1997-1999; 2000s); lowest 50.2 (2020-2025).

Details

Recorded events 5 · Country record

  • 2020sovereign stress
  • 1 Jan 2018capital controls
  • 1997sovereign stress
  • 1 Jan 1996capital controls
  • 1 Jan 1994capital controls

public country snapshot archive, frozen 10 July 2026. The chart shows mapped historical scores through 2025, with bands at 55, 65 and 80. The 2026 snapshot uses a separate score scale. Its archived crisis category is independent of that number. No numerical change from 2025 to 2026 is implied.

Tonga · historical scale through 2025
YearMapped historical scoreHistorical bandRecord
199778.3Strainarchive reading
199878.3Strainarchive reading
199978.3Strainarchive reading
200078.3Strainarchive reading
200178.3Strainarchive reading
200278.3Strainarchive reading
200378.3Strainarchive reading
200478.3Strainarchive reading
200578.3Strainarchive reading
200678.3Strainarchive reading
200778.3Strainarchive reading
200878.3Strainarchive reading
200978.3Strainarchive reading
201078.3Strainarchive reading
201178.3Strainarchive reading
201278.3Strainarchive reading
201378.3Strainarchive reading
201478.3Strainarchive reading
201578.3Strainarchive reading
201678.3Strainarchive reading
201957.1Watcharchive reading
202076.6Strainarchive reading
202178.3Strainarchive reading
202260.1Watcharchive reading
202356.5Watcharchive reading
202415Calmarchive reading
202515Calmarchive reading
Tonga · 2026 snapshot, frozen 10 July 2026
Snapshot yearScore on the separate 2026 scaleIndependent archived crisis categoryRecord
202615Calmarchive reading

Last cycles

Last change: 14 Aug 2026, 4 fields.

Details
Country change history for Tonga
CycleDateFields changedLayer distance from baselineRecord
date unavailable2026-10-280Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
17 Oct 20262026-10-170Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
6 Oct 20262026-10-060Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
25 Sep 20262026-09-250Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
14 Sep 20262026-09-140Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
4 Sep 20262026-09-040Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
27 Aug 20262026-08-270Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Reconstructed from archived cycle files
14 Aug 20262026-08-144Identity: 0 · Economy: 0 · Politics: 0 · Events: 2 · Information: 1 · Society: 1Reconstructed from archived cycle files
2 Aug 20262026-08-020Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Reconstructed from archived cycle files
29 Jul 20262026-07-29T13:40:26Z0Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Reconstructed from archived cycle files
10 Jul 20262026-07-10T00:30:00Z0Identity: 0 · Economy: 0 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
🟢 Calm <55🟡 Watch 55-<65🟠 Strain 65-<80🔴 Crisis 80-100

Snapshot 28 Oct 2026 · Public country snapshot · Data notices

Technical detail

Field sources carry their own dates (shown in each detail).

Record support

How well documented each layer of this country's record is (share of confirmed and sourced fields). Not a pressure reading.

L1 Identity60%
L2 Economy58%
L3 Politics79%
L4 Events62%
L5 Information60%
L6 Society75%

Source: Hendeka record audit, snapshot 28 Oct 2026

Phase 1Confidence 66

Tonga in this snapshot

Tonga (TON) records Calm pressure at 15.0 of 100 and touches 0 mapped pressure points.

The recorded country pattern is drifting; its numbered pressure band is 1. The source confidence score is 66.0.

Snapshot 28 Oct 2026. Dataset published 2026-11-05T08:17:49Z. Source: public country snapshot public country index.

5 public layer readings; 0 mapped pressure points in this dated snapshot; 11 country change records; 28 archive readings. Identity is descriptive; absent readings are named beside each layer.

Tonga has pressure score 15/100 in Calm. 186 of 206 public Atlas entries have a higher score; 20 share this score. Its competition rank is 187. This is the published snapshot, not the mapped historical scale.

Adjacent entries in score-descending order (ties by case-folded name, then ISO3): San Marino (SMR), 15/100, tied.

Tonga's highest decade mean is recorded in 1997-1999 (3 readings, mean 78.3); 2000-2009 (10 readings, mean 78.3). The lowest is 2020-2025 (6 readings, mean 50.2). Calendar decades use available years only; edge decades are partial. These means are calculated from published mapped scores, not the latest pressure scores.

Tonga: published archive aggregates by calendar decade
Observed yearsReadingsMeanMinimumMaximumAt or above 80
1997-1999378.378.378.30
2000-20091078.378.378.30
2010-2019875.657.178.30
2020-2025650.21578.30

Across 27 annual readings (1997-2025), Tonga's mapped-score peak is 78.3 in 1997-2016, 2021; the minimum is 15 in 2024-2025.

Tonga is at or above the historical threshold 55 in 25 of 27 readings: 1997-2016, 2019-2023. The remaining 2 are below 55.

Tonga is at or above the historical threshold 65 in 22 of 27 readings: 1997-2016, 2020-2021. The remaining 5 are below 65.

Tonga never reaches the historical threshold 80 in the 27 published annual readings.

The latest observed annual historical-band change for Tonga is 2023 to 2024: Watch (56.5) to Calm (15). This compares annual historical readings; it does not describe a change between published country snapshots.

Tonga records no changed fields against the previous measured cycle at date unavailable (2026-10-28); previous cycle: 17 Oct 2026. Layer counts are distances from baseline, not cycle-change components.

Pressure point readings and their own snapshot date are shown in Pressure points.

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