CassandrIA
JPNJapan flag

Japan

Japan has a Watch pressure reading, in the highest quarter.

🟡 Watch

64 / 100

#45 of 206

Chance of a conflict escalation in Japan in November or December 2026: <0.1% · remote

Chance of a conflict escalation in Japan 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 Japan, or with Japan 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
<0.1% · 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

Population123.4M
CapitalTokyo
Area377.9k km²
GDP$4.4T (2025)
CurrencyJPY
LanguagesJapanese
Armed forces261k (2020)
L1 Identity
n/a · identity, no pressure reading
L2 Economy
54.71
L3 Politics
31.61
L4 Events
5
L5 Information
31.37
L6 Society
59.33

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 71.8 (1946-1949); lowest 21.7 (2020-2025).

Details

Recorded events 2 · Country record

  • 7 Apr 2020state of emergency
  • 2013currency stress

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.

Japan · historical scale through 2025
YearMapped historical scoreHistorical bandRecord
194673.4Strainarchive reading
194773.3Strainarchive reading
194872.9Strainarchive reading
194967.5Strainarchive reading
195067.2Strainarchive reading
195159.2Watcharchive reading
195259.1Watcharchive reading
195357.9Watcharchive reading
195457.1Watcharchive reading
195556.7Watcharchive reading
195656.5Watcharchive reading
195756.0Watcharchive reading
195855.7Watcharchive reading
195955.5Watcharchive reading
196055.1Watcharchive reading
196153.4Calmarchive reading
196251.4Calmarchive reading
196349.9Calmarchive reading
196448.2Calmarchive reading
196546.9Calmarchive reading
196644.5Calmarchive reading
196742.5Calmarchive reading
196840.2Calmarchive reading
196937.7Calmarchive reading
197035.3Calmarchive reading
197133.8Calmarchive reading
197232.1Calmarchive reading
197330.6Calmarchive reading
197456.7Watcharchive reading
197530.3Calmarchive reading
197628.3Calmarchive reading
197727.5Calmarchive reading
197826.0Calmarchive reading
197925.5Calmarchive reading
198025.7Calmarchive reading
198125.5Calmarchive reading
198225.5Calmarchive reading
198324.4Calmarchive reading
198424.2Calmarchive reading
198523.8Calmarchive reading
198623.5Calmarchive reading
198724.3Calmarchive reading
198824.2Calmarchive reading
198922.8Calmarchive reading
199033.1Calmarchive reading
199122.2Calmarchive reading
199227.5Calmarchive reading
199355.2Watcharchive reading
199421.9Calmarchive reading
199521.7Calmarchive reading
199621.6Calmarchive reading
199738.0Calmarchive reading
199855.1Watcharchive reading
199955.1Watcharchive reading
200021.3Calmarchive reading
200121.2Calmarchive reading
200221.1Calmarchive reading
200321.0Calmarchive reading
200420.9Calmarchive reading
200520.8Calmarchive reading
200620.8Calmarchive reading
200720.7Calmarchive reading
200854.4Calmarchive reading
200954.3Calmarchive reading
201020.5Calmarchive reading
201156.0Watcharchive reading
201221.3Calmarchive reading
201325.9Calmarchive reading
201425.8Calmarchive reading
201524.8Calmarchive reading
201620.1Calmarchive reading
201720.7Calmarchive reading
201820.6Calmarchive reading
201916.8Calmarchive reading
202033.0Calmarchive reading
202119.7Calmarchive reading
202219.4Calmarchive reading
202318.7Calmarchive reading
202419.8Calmarchive reading
202519.4Calmarchive reading
Japan · 2026 snapshot, frozen 10 July 2026
Snapshot yearScore on the separate 2026 scaleIndependent archived crisis categoryRecord
202664Calmarchive reading

Years like now

3 similar years · Closest: Austria, 2006

Details
Austria, 2006Denmark, 1999Norway, 2007

AUT, 2006

Published archive distance 0.086. This similarity is not a forecast.

DNK, 1999

Published archive distance 0.0871. This similarity is not a forecast.

NOR, 2007

Published archive distance 0.1636. This similarity is not a forecast.

Last cycles

Last change: 28 Oct 2026, 2 fields.

Details
Country change history for Japan
CycleDateFields changedLayer distance from baselineRecord
date unavailable2026-10-282Identity: 0 · Economy: 2 · Politics: 0 · Events: 0 · Information: 0 · Society: 0Original public record
17 Oct 20262026-10-172Identity: 0 · Economy: 1 · Politics: 1 · 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
🟢 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 Economy60%
L3 Politics66%
L4 Events30%
L5 Information73%
L6 Society67%

Source: Hendeka record audit, snapshot 28 Oct 2026

Phase 2Confidence 59.1

Japan in this snapshot

Japan (JPN) records Watch pressure at 64.0 of 100 and touches 0 mapped pressure points.

The recorded country pattern is drifting; its numbered pressure band is 2. The source confidence score is 59.1.

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; 3 country change records; 81 archive readings. Identity is descriptive; absent readings are named beside each layer.

Japan has pressure score 64/100 in Watch. 44 of 206 public Atlas entries have a higher score; 2 share this score. Its competition rank is 45. This is the published snapshot, not the mapped historical scale.

Adjacent entries in score-descending order (ties by case-folded name, then ISO3): Western Sahara (ESH), 65/100, higher by 1; Mexico (MEX), 64/100, tied.

Japan's highest decade mean is recorded in 1946-1949 (4 readings, mean 71.8). The lowest is 2020-2025 (6 readings, mean 21.7). Calendar decades use available years only; edge decades are partial. These means are calculated from published mapped scores, not the latest pressure scores.

Japan: published archive aggregates by calendar decade
Observed yearsReadingsMeanMinimumMaximumAt or above 80
1946-1949471.867.573.40
1950-19591058.155.567.20
1960-1969104737.755.10
1970-19791032.625.556.70
1980-19891024.422.825.70
1990-19991035.121.655.20
2000-20091027.620.754.40
2010-20191025.216.8560
2020-2025621.718.7330

Across 80 annual readings (1946-2025), Japan's mapped-score peak is 73.4 in 1946; the minimum is 16.8 in 2019.

Japan is at or above the historical threshold 55 in 20 of 80 readings: 1946-1960, 1974, 1993, 1998-1999, 2011. The remaining 60 are below 55.

Japan is at or above the historical threshold 65 in 5 of 80 readings: 1946-1950. The remaining 75 are below 65.

Japan never reaches the historical threshold 80 in the 80 published annual readings.

The latest observed annual historical-band change for Japan is 2011 to 2012: Watch (56) to Calm (21.3). This compares annual historical readings; it does not describe a change between published country snapshots.

Japan records 2 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.

CassandrIA A free public observatory of country pressure
MethodSupport

CassandrIA, country pressure and conflict escalation forecasts