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Question: which single calendar date between 2026-04-30 and 2026-08-12 will have the largest number of PLA aircraft entering Taiwan’s ADIZ (per Taiwan MND/PLATracker) — noting resolution uses Taiwan’s 06:00–06:00 occurrence-date and ties annul the market. Forecasters unanimously treat this as an argmax-over-dates problem driven by discrete political/military triggers (not smooth seasonality), so the top-day is most likely to be a 1–5 day spike following a trigger rather than ordinary summer noise. The teams converge on two high-signal windows: mid‑May (around 18–23 May, tied to the WHO/WHA, Lai’s May 20 anniversary and possible US–China summit) and early August (Han Kuang 42 live‑force and nationwide air‑defence drills, 5–12 Aug), with a secondary July possibility modeled after the July 2024 carrier/drill analogue. Individual models allocate the plurality of mass to Han Kuang (examples: ~35% on early‑Aug in one model, ~35% in another), ~20–25% to the mid‑May band, ~15–18% to an early‑July burst, and the remainder to unfocused/unexpected shocks or the small chance of annulment/data fallback. Key operational cautions emphasized by all: use Taiwan MND daily tallies (watch the 06:00 boundary), expect sawtooth/spiky behavior with 1–3 week patrol cadence, and explicitly model tie/annulment risk since multi‑day drill plateaus could produce equal highs.
Forecast: Probability distribution:
We are forecasting the occurrence date (2026-04-30 to 2026-08-12, inclusive) that ends up being the single highest daily count of PLA aircraft entering Taiwan’s ADIZ (per PLATracker/MND). This is essentially an “argmax over days” problem: even if average activity is modest, the maximum is usually set by a small number of spike days tied to exercises/political triggers.
Across the team forecasts, the main disagreement is whether the peak is most likely in mid-July (Forecasters 1/2/4) or concentrated in early August (Forecaster 3). Forecaster 3 provides the most decision-relevant concrete scheduling evidence: Han Kuang’s live-fire portion is reportedly in early-to-mid August, overlapping the question window (Aug 5–12). Forecaster 2 independently flags Han Kuang as a likely catalyst. That argues for a meaningful late-window skew.
However, it would be overconfident to assume Han Kuang guarantees the single largest day in the whole window: historically, the very largest one-day spikes tend to be driven by PLA-initiated named exercises responding to major political events, which can occur outside Taiwan’s exercise calendar and with timing that is hard to predict months ahead. Also, even if Han Kuang drives a surge, the single highest day could plausibly occur near the start of the exercise period (or even shortly before it), not necessarily at the very end of the window.
Synthesis: I place the median in late July (a compromise between the July-centered forecasts and the Han Kuang/August catalyst), with a substantial probability mass in early August (especially Aug 4–9), but not so much that the distribution collapses into a very narrow August band. I keep the extreme upper tail small (conditioning on non-annulment, and assuming the peak day can be identified from normal reporting), so I do not push percentiles beyond the open upper bound; instead, I allow a small remaining tail for Aug 11–12 implicitly above p95.
An amateur forecast tends to (a) spread probability roughly uniformly across the window, or (b) anchor too heavily on “near the deadline” without a concrete mechanism, or (c) overreact to a single cited catalyst and become too narrow. This forecast improves by explicitly combining (1) a base-rate view that maxima can occur on surprise spike days at many points in the window, with (2) a justified late-window skew from the scheduled Han Kuang overlap, while (3) avoiding the common mechanical error of placing percentiles right at/near the open upper bound and avoiding an overly-tight August-only distribution. Confidence in improvement is moderate: the overall skew direction is well-motivated, but exact spike timing remains inherently hard to predict this far out.
Here is a synthesis of the qualitative reasoning across the provided rationales:
Overview of PLA Escalation Patterns The forecasters unanimously agree that record-breaking, single-day People’s Liberation Army (PLA) incursions into Taiwan’s Air Defense Identification Zone (ADIZ) are not random. Instead, they are deliberate, punitive responses to specific geopolitical catalysts, U.S.-Taiwan diplomatic engagements, or major military exercises.
The Mid-May Lull and Late-May Flashpoints
Summer Diplomatic and Military Triggers
Logistical and Weather Constraints
Question: Which day will have the largest amount of Taiwan ADIZ violations before August 13, 2026? Final Prediction: Probability distribution:
Total Cost: extra_metadata_in_explanation is disabled Time Spent: extra_metadata_in_explanation is disabled LLMs: extra_metadata_in_explanation is disabled Bot Name: extra_metadata_in_explanation is disabled
Forecaster 1: Probability distribution:
Forecaster 2: Probability distribution:
Forecaster 3: Probability distribution:
Forecaster 4: Probability distribution:
Forecaster 5: Probability distribution:
The research focuses on predicting which day between April 30 and August 12, 2026, will experience the highest number of violations of Taiwan’s Air Defense Identification Zone (ADIZ) by People’s Liberation Army (PLA) aircraft. It establishes a historical baseline of single-day records, noting that significant spikes in aircraft entries are primarily linked to named military exercises, which are often triggered by political events such as arms sales or high-level visits. The research highlights recent activity levels in 2026, indicating a general range of 2-25 aircraft entering the ADIZ daily, and notes an upward trend in annual violations over the past years.
Key geopolitical factors that could influence the number of ADIZ violations include the Balikatan 2026 military exercises involving multiple nations, a recent airspace closure by China, and ongoing tensions related to arms sales and political anniversaries. The analysis suggests that a peak day with over 50 aircraft is likely to occur if a named PLA exercise is triggered by these events, while a more moderate peak of 20-35 aircraft could happen without such provocations. The research also considers the possibility of multiple days tying for the highest count, which would lead to annulment of the peak day identification.
Sources used in the research include:
(Note: Specific links were not provided in the original text.)
This question asks which single day in the April 30 – August 12, 2026 window will see the largest number of PLA aircraft entering Taiwan’s ADIZ. The question resolves to that specific date at 12:00 UTC, is annulled if there’s a tie, and resolves as >2026-08-12 if no qualifying peak can be identified.
Understanding the distribution of peak days is critical:
| Date | Aircraft in ADIZ | Trigger |
|---|---|---|
| Oct 14, 2024 | 111 (all-time record) | Named PLA exercise |
| Dec 29, 2025 | ~89–90 | “Justice Mission 2025” exercise, response to $11.1B US arms sale [12][17] |
| Apr 2025 | 135 sorties over multi-day exercise | “Strait Thunder-2025A” [13] |
| Aug 2022 | ~100+ on peak days | Response to Pelosi visit |
Key pattern: Named military exercises (Joint Sword, Justice Mission, Strait Thunder) are responsible for virtually all single-day spikes above ~40 aircraft. These exercises are themselves triggered by political provocations — US arms sales, high-level visits, Taiwan political events.
Daily activity in 2026 has generally been in the 2–25 aircraft range entering the ADIZ:
An unusual complete pause occurred Feb 27 – Mar 5, 2026, attributed to cyclical variability rather than strategic shift [14].
The upward trajectory is significant [13]:
This means the daily baseline is higher than ever, and exercise peaks may also be larger.
Several factors make a major spike plausible but not certain in this window:
Balikatan 2026 (April 20 – May 8): Largest-ever iteration, with Japan participating for the first time at scale (1,400+ personnel), plus Australia, Canada, France, and New Zealand. Exercises include maritime strike drills on Itbayat Island, just 154 km from Taiwan. PLA has already responded with a carrier strike group (Liaoning + 076 amphibious assault ship “Sichuan” + escorts) and “joint war readiness patrols” [15][19][20][24].
China’s 40-day airspace closure (March 27 – May 6): An unusually long NOTAM closure of airspace over the Yellow and East China Seas, possibly for missile testing or preparation for a major exercise [18][19]. The closure ending May 6 could precede a large-scale PLA exercise.
PLA response exercises expected: Analysts suggest the PLA may launch its own large-scale exercises in the “latter half of the month” (late April/early May), with a “second echelon on standby” [20]. This is the most immediate risk for a major spike.
Anniversary of Lai Ching-te’s inauguration (~May 20, 2024): Past PLA exercises have been timed to political anniversaries. The 2nd anniversary could trigger activity.
Ongoing US-Taiwan arms sales: The $11.1B arms sale that triggered Justice Mission 2025 continues to be a sore point. Any new announcements could trigger another named exercise [17].
KMT “2026 Peace Tour”: KMT Chairman has proposed meeting Xi Jinping, which could have a de-escalatory effect if it gains traction [21]. However, Taiwan’s December 2026 local elections may also provoke PLA signaling.
Trump-Xi dynamics: A planned summit and broader US-China diplomatic engagement could either constrain or not prevent PLA activity (exercises have occurred even during diplomatic engagement periods).
For the peak day to be very high (50+ aircraft):
For the peak day to be moderate (20–35 aircraft):
For annulment (tied peak days):
No prediction markets were found specifically addressing this question (Taiwan ADIZ peak day). I searched Metaculus, Polymarket, and general prediction market platforms without finding a matching market. This limits the availability of crowd-sourced probability estimates.
Related markets on broader Taiwan conflict scenarios do exist on Polymarket and Metaculus, but none with the granularity of daily ADIZ counts.
The resolution source is PLATracker’s Google Spreadsheet, which tracks ADIZ entries specifically (not total aircraft tracked in vicinity). The Taiwan MND website and its daily X/Twitter posts are the primary data source. The MND’s reporting convention uses a 24-hour period from 06:00 local time (UTC+8).
Important distinction: News reports often cite total “sorties detected” which includes aircraft that did NOT enter the ADIZ. The resolution metric is specifically aircraft entering the ADIZ. For example, on April 25, 2026, 8 aircraft were detected but none entered the ADIZ [3]. On May 1, all 4 sorties entered the southwestern ADIZ [4].
The most likely scenarios for the peak day are:
The convergence of Balikatan 2026 ending May 8, China’s 40-day airspace closure ending May 6, and the massive PLA naval/air force already deployed makes early-to-mid May 2026 the highest-risk period for a major spike.
The combined distribution should indeed be flatter than my current forecast.
June Gap is Too Compressed: The jump from P50 to P60 covering only 11 days (May 28 to June 8) doesn’t properly account for June’s potential triggers (ongoing diplomatic fallout, arms sales, congressional visits during summer recess).
August Deserves More Probability: The Taiwan December 2026 local elections argument is compelling - PLA signaling typically increases months before Taiwan elections, making July/August prime time for pressure tactics.
Late May Remains High-Probability: While I accept the flatter distribution argument, the convergence of known triggers (Balikatan ending, airspace closure ending, summit aftermath, Lai anniversary) creates an unusually concentrated cluster. The median shifting to June 1 might overcorrect.
Early May Matters: The 40-day airspace closure ending May 6 + Balikatan ending May 8 + already-deployed carrier group = substantial early May probability. My P5 of May 6 and P10 of May 10 appropriately capture this.
Conditioning on non-annulment is key: If we’re conditioning on there being a clear peak day (not a tie), we’re conditioning on a substantial spike occurring. This actually supports BOTH concentration around known triggers AND taking later triggers seriously - because we know SOME spike will define the peak.
Updated prediction: Percentile 0.1: 2026-04-30 Percentile 1: 2026-05-02 Percentile 5: 2026-05-07 Percentile 10: 2026-05-11 Percentile 20: 2026-05-17 Percentile 30: 2026-05-21 Percentile 40: 2026-05-26 Percentile 50: 2026-05-30 Percentile 60: 2026-06-10 Percentile 70: 2026-06-24 Percentile 80: 2026-07-12 Percentile 90: 2026-07-28 Percentile 95: 2026-08-06 Percentile 99: 2026-08-11 Percentile 99.9: 2026-08-12
Looking at the critic’s Round 3 analysis, let me search for any final updates on the current situation:
Based on this updated research, let me now address the critic’s Round 3 points:
I Accept These Valid Criticisms:
A peak day during the summit would undermine Beijing’s diplomatic objectives. I should push the 10th percentile to May 17.
Mid-June has fewer natural triggers, though Congressional action could occur anytime.
New Insights:
Current activity confirms pre-summit restraint: The 2-4 aircraft entering ADIZ in late April/May 1 is well below the ~18-25 range seen in mid-April. This confirms Beijing is calibrating activity ahead of the summit.
“Joint War Readiness Patrol” on May 1: A 28-sortie event with 15 crossing the median line shows the PLA is maintaining capability demonstrations, but activity levels remain controlled.
Conditioning on non-annulment: This conditions on a clear peak existing, favoring named exercise scenarios. Named exercises produce 50-100+ aircraft days, while routine activity (~20-25 aircraft) could produce ties. This slightly supports a bimodal view.
Final Assessment:
I largely accept the critic’s suggested distribution, which properly accounts for:
Minor adjustment: I’ll keep P5 at May 10 to maintain some small tail probability for unexpected early events (summit breakdown, unexpected provocation).
Updated prediction:
Percentile 0.1: 2026-04-30 Percentile 1: 2026-05-04 Percentile 5: 2026-05-10 Percentile 10: 2026-05-17 Percentile 20: 2026-05-21 Percentile 30: 2026-05-27 Percentile 40: 2026-06-02 Percentile 50: 2026-06-08 Percentile 60: 2026-06-18 Percentile 70: 2026-07-04 Percentile 80: 2026-07-21 Percentile 90: 2026-08-02 Percentile 95: 2026-08-08 Percentile 99: 2026-08-11 Percentile 99.9: 2026-08-12
Let me search for any more recent developments that might inform my updated forecast.
This provides critical new context. Let me now address the critic’s points with updated information:
Trump-Xi summit dynamics: The critic was right that my original forecast didn’t adequately account for this. The May 14-15 summit creates a diplomatic window where China may moderate ADIZ activity. However, the search results also show China sent 28 sorties on April 26 (with 18 entering ADIZ) precisely because the summit is approaching - they’re signaling before talks.
Right tail concerns: I agree my right tail was too compressed. The PLA Day (August 1) and summer political triggers deserve more weight.
“No Named Exercise” scenario: If routine activity dominates, the peak could be moderate and occur anytime.
May concentration remains justified: The April 26 spike (28 sorties, 18 entering ADIZ) shows the PLA IS actively escalating around Balikatan. Combined with the carrier group deployment and airspace closure ending May 6, early-mid May remains the highest-probability window for a major exercise.
Exercise timing post-Balikatan: Historical pattern supports immediate response - the carrier group is already positioned. The search confirms PLA is actively escalating, not waiting.
Summit creates two-way pressure: While diplomatic engagement might moderate, it could also CREATE a trigger if talks fail or produce friction on Taiwan.
I’ll shift my distribution slightly later to account for:
But I won’t shift as far as the critic suggests because:
Updated prediction:
Percentile 0.1: 2026-04-30 Percentile 1: 2026-05-03 Percentile 5: 2026-05-06 Percentile 10: 2026-05-08 Percentile 20: 2026-05-11 Percentile 30: 2026-05-14 Percentile 40: 2026-05-18 Percentile 50: 2026-05-22 Percentile 60: 2026-05-28 Percentile 70: 2026-06-08 Percentile 80: 2026-06-25 Percentile 90: 2026-07-15 Percentile 95: 2026-07-31 Percentile 99: 2026-08-08 Percentile 99.9: 2026-08-12
Let me search for any additional recent information that might affect my forecast before responding to the critic.
This is very useful information! Now let me search for more specifics on the Han Kuang live-fire exercises typically held in summer.Now I have excellent additional information. Let me integrate this into my revised forecast.
Concentration bias: The critic is right that I placed ~50% probability in the first 17 days of a 104-day window. While I had reasons, this may be excessive.
Han Kuang exercises: This is a critical oversight. The new search confirms that Taiwan’s live-fire Han Kuang exercises are held in summer (July last year) and are explicitly designed to test combat readiness against Chinese invasion. The 2025 exercises started July 9 and China conducted “large-scale military drills” around Taiwan during and after them. The critic correctly identified this as a major trigger I underweighted.
Statistical properties of maxima: The rising baseline does favor later dates statistically, all else equal.
Multiple exercises scenario: A moderate post-Balikatan response followed by a larger Han Kuang-triggered exercise is quite plausible.
This isn’t just recency bias - these create genuinely elevated risk for a major exercise in May.
Han Kuang live-fire drills in August: The 2025 exercises started July 9 and ran 10 days. The 2026 live-fire exercises are confirmed for summer (likely late July/August based on pattern). Defense Minister Koo confirmed they will again be 10 days.
China’s airspace closure ends May 6: This 40-day NOTAM closure of Yellow/East China Sea airspace is “unusual” and may signal preparation for a major exercise.
April 26, 2026 activity: 28 sorties detected, with 18 crossing median/entering ADIZ - this is elevated but not near record levels.
Eurasia Group prediction: Analysts predicted China would “likely” carry out more exercises at the end of July 2025 (around Han Kuang). This pattern could repeat in 2026.
The critic’s main point about Han Kuang exercises in July-August is well-taken. I need to add more probability mass to late July/August to account for:
However, I still believe the early-to-mid May period deserves substantial weight given the current convergence of factors. The question is whether a post-Balikatan exercise will exceed any Han Kuang-triggered response.
I’ll adjust my forecast to be less concentrated in May while still reflecting the elevated near-term risk.
Updated prediction:
Percentile 0.1: 2026-05-01 Percentile 1: 2026-05-04 Percentile 5: 2026-05-07 Percentile 10: 2026-05-09 Percentile 20: 2026-05-12 Percentile 30: 2026-05-15 Percentile 40: 2026-05-19 Percentile 50: 2026-05-24 Percentile 60: 2026-06-03 Percentile 70: 2026-06-20 Percentile 80: 2026-07-10 Percentile 90: 2026-07-28 Percentile 95: 2026-08-06 Percentile 99: 2026-08-10 Percentile 99.9: 2026-08-12
The critic continues to push for a more uniform distribution, raising several points I need to carefully consider for my final forecast.
Airspace closure interpretation: The critic correctly notes that China’s airspace closures don’t always translate to Taiwan-focused mega-exercises. The 40-day closure could serve multiple purposes (missile testing, submarine training, Yellow Sea operations). I may have over-attributed this to Taiwan preparations.
Summit timing dynamics: The “delay until after summit” scenario is at least as plausible as “demonstrate strength before summit.” Xi may prefer to project stability during negotiations. This argues against concentrating probability in May 8-14.
Base rate reasoning: With 2-3 major exercises annually, and a 105-day window (~3.5 months), the timing within our window should be somewhat more uniform than I’ve assigned. The conditioning on non-annulment implies we’re conditioning on a named exercise occurring, but when within the window remains uncertain.
August 1 PLA Day: This is the one fixed, predictable date in the entire window. It deserves meaningful weight (~5-7% for July 30-Aug 3).
Operational indicators matter: The combination of Balikatan conclusion, deployed carrier strike group, and completed airspace preparations does create elevated near-term risk. Some front-loading is justified.
May 20 Lai anniversary: While anniversaries may be less potent than inaugurations, this political marker provides cover for Beijing to launch exercises.
Post-summit retaliation window (May 20-June 10): If Beijing restrains during summit, accumulated pressure would likely release within 2-4 weeks after.
Through four rounds, the dialogue has moved my median from May 17 → May 21 → May 22 → now settling on May 24. This represents:
I’m accepting a partial shift toward the critic’s position while maintaining that operational indicators do create genuine elevated early risk.
Updated prediction:
Percentile 0.1: 2026-04-30 Percentile 1: 2026-05-02 Percentile 5: 2026-05-06 Percentile 10: 2026-05-08 Percentile 20: 2026-05-11 Percentile 30: 2026-05-14 Percentile 40: 2026-05-18 Percentile 50: 2026-05-24 Percentile 60: 2026-06-03 Percentile 70: 2026-06-17 Percentile 80: 2026-07-04 Percentile 90: 2026-07-23 Percentile 95: 2026-08-02 Percentile 99: 2026-08-09 Percentile 99.9: 2026-08-12
Agent Forecast (date, confidence: low-medium)
Base Rate: Uniform peak-day distribution across 9 bins gives ~11% baseline per 13-day bin (8 bins × 13 days = 104 days ≈ 105 days plus residual). Major exercise base rate (~1.4 per year, 5 events in 42 months) implies ~33% probability of an exercise occurring in the window. The May 13-26 bin’s 24% weight reflects ~2x baseline due to trigger concentration; remaining bins cluster near baseline.
Initial Reasoning:
Key Uncertainties:
Evidence Sources (11):
Grounding Facts (passed to reviewers):
Draft: May 13, 2026 to May 26, 2026: 27.0%, May 26, 2026 to Jun 08, 2026: 17.0%, Jun 08, 2026 to Jun 21, 2026: 10.0%, Apr 30, 2026 to May 13, 2026: 9.0%, Jun 21, 2026 to Jul 04, 2026: 9.0%
Reviewer Panel:
Reviewer (reasoning)
The forecast leans heavily on political anniversaries (May 20) and the Trump–Xi summit to predict a new daily peak, yet it ignores the base rate of daily ADIZ entries (the current intra-window high is already 10 aircraft on April 29) and the downward trend in monthly sorties. It also fails to allocate sufficient probability to the scenario that no day between April 30 and August 12 will exceed April 29’s count, or that the peak will occur before May 13. By focusing on analogies to 2024 drills without showing that those exercises ever surpassed March’s 36‐aircraft high, it overstates the chance of a new maximum in mid-May.
Objections:
Reviewer (calibration)
The forecast correctly identifies the May 13-26 window as the strongest candidate due to significant political triggers. However, it underweights the recent general decline in ADIZ activity, which impacts the likelihood of exceeding previous high peaks. The forecast also places too much emphasis on an explicitly negative outcome from the Trump-Xi summit as a trigger, without adequately considering other possibilities.
Objections:
Reviewer (fact-checker)
Verdict: clean
Adjustment Rationale:
Adjusted toward reviewer feedback: reduced May 13-26 from 27% to 24% to account for the documented YoY decline in PLA ADIZ activity (Reviewer 2’s strongest point), which weakens the political-trigger amplification logic. Increased June-August bins toward the 12.4% per-bin baseline because if no major exercise occurs, the peak day distributes more uniformly. The May 13-26 bin remains the modal outcome due to the dual catalyst of the Trump-Xi summit (May 14-15) and Lai’s 2nd inauguration anniversary (May 20) — Joint Sword-2024A precedent (May 23-24, 2024) is too direct an analogy to dilute further. Held firm against Reviewer 1’s framing that April 29’s 10 aircraft constrains the answer — that day is outside the window, and the question asks which day is the peak regardless of magnitude. Reduced ‘After Aug 12’ from 4% to 3% given PLATracker’s reliability. Confidence lowered from ‘medium’ to ‘low-medium’ to reflect the genuine uncertainty about the Trump-Xi summit outcome and continued post-summit posture.
forecast_sdk | 699.1s | research $0.8314 + reviewers $0.0123 + reconcile $0.1982 = $1.0419
Extracted Date Percentile Values: {0.1: 1777507200.0, 1.0: 1777766400.0, 5.0: 1778198400.0, 10.0: 1778716800.0, 15.0: 1779321600.0, 20.0: 1779926400.0, 25.0: 1780444800.0, 30.0: 1780963200.0, 35.0: 1781481600.0, 40.0: 1782000000.0, 45.0: 1782432000.0, 46.0: 1782518400.0, 47.0: 1782604800.0, 48.0: 1782691200.0, 49.0: 1782777600.0, 50.0: 1782864000.0, 51.0: 1783036800.0, 52.0: 1783123200.0, 53.0: 1783296000.0, 54.0: 1783382400.0, 55.0: 1783555200.0, 60.0: 1783987200.0, 65.0: 1784419200.0, 70.0: 1784851200.0, 75.0: 1785196800.0, 80.0: 1785542400.0, 85.0: 1785801600.0, 90.0: 1786060800.0, 95.0: 1786320000.0, 99.0: 1786492800.0, 99.9: 1786665600.0}
Model’s Answer:
Nature of the question: I need to predict the date of the single highest daily ADIZ violation count over a ~104-day window. This is the argmax of a stochastic process.
Step one: Baseline distribution. If daily violation counts were stationary with no trend, the peak day would be approximately uniformly distributed across all 104 days. Each day would carry ~1% probability.
Step two: Identify clustering factors. Historical spikes cluster around:
Step three: Current baseline and trends. 2026 has been lower than 2025 so far—sharp drop Feb-Mar, resumption in April at ~4.5/day average. Current period data shows only 2-4 aircraft/day. Without a major exercise, the peak will likely just be the maximum of routine variation (~15-30 range), which is roughly uniformly distributed over the window.
Step four: Probability of a major spike event. I estimate ~25-35% chance of a major exercise or provocation-driven spike (50+ aircraft) within this window. If such an event occurs, it’s somewhat more likely in late July/early August (Han Kuang + PLA Day) but could happen any time.
Assumption 1: No major political crisis (e.g., Taiwan independence declaration, US official visit) occurs in May-June. ~15% chance this is wrong → would pull the peak earlier.
Assumption 2: PLA maintains current moderate activity level as baseline. ~20% chance of a sustained escalation that shifts the distribution.
Assumption 3: MND reporting continues consistently through August. ~1-2% chance of disruption → resolves >Aug 12.
Earlier outcome: A near-term political trigger (May 20 inauguration anniversary, US arms sale announcement, unexpected diplomatic incident) or continuation of the current April uptick could create an early peak.
Later outcome: PLA founding day (Aug 1) and Taiwan’s Han Kuang exercises (late July) historically elevate tensions. Summer training season peaks could compound. The later portion has slightly more “known trigger events.”
The distribution is roughly uniform across the 104-day window, with modest concentration toward late July/early August due to identified trigger dates, and a very small tail after Aug 12 for data-availability edge cases. High uncertainty throughout—wide confidence intervals reflect genuine unpredictability of the peak-day trigger.
Percentile .1: 2026-04-30 Percentile 1: 2026-05-03 Percentile 5: 2026-05-08 Percentile 10: 2026-05-14 Percentile 15: 2026-05-21 Percentile 20: 2026-05-28 Percentile 25: 2026-06-03 Percentile 30: 2026-06-09 Percentile 35: 2026-06-15 Percentile 40: 2026-06-21 Percentile 45: 2026-06-26 Percentile 46: 2026-06-27 Percentile 47: 2026-06-28 Percentile 48: 2026-06-29 Percentile 49: 2026-06-30 Percentile 50: 2026-07-01 Percentile 51: 2026-07-03 Percentile 52: 2026-07-04 Percentile 53: 2026-07-06 Percentile 54: 2026-07-07 Percentile 55: 2026-07-09 Percentile 60: 2026-07-14 Percentile 65: 2026-07-19 Percentile 70: 2026-07-24 Percentile 75: 2026-07-28 Percentile 80: 2026-08-01 Percentile 85: 2026-08-04 Percentile 90: 2026-08-07 Percentile 95: 2026-08-10 Percentile 99: 2026-08-12 Percentile 99.9: 2026-08-14
Forecast (percentiles, aggregated):
Per-model forecasts:
Rationale: Summary The timing of the single largest spike in People’s Liberation Army (PLA) aircraft entering Taiwan’s Air Defense Identification Zone (ADIZ) between April 30 and August 12, 2026, is highly dependent on scheduled political events and military exercises. Historical data indicates that record-breaking ADIZ incursions—such as the all-time high of 111 aircraft on October 14, 2024—are deliberate demonstrations of force tied to named military operations or perceived political provocations rather than random fluctuations. The timeline for a peak day centers around two major high-risk clusters. The first surrounds the May 20 anniversary of Taiwanese President Lai Ching-te’s inauguration, a historically sensitive period that has triggered large-scale PLA drills in the past. The second major cluster occurs in early August, aligning with Taiwan’s annual Han Kuang 42 live-fire exercises scheduled for August 5-14, along with related urban resilience and air raid drills. Because major spikes are event-driven, the probability distribution is essentially bimodal. The median estimate of mid-July primarily acts as a mathematical bridge between these two distinct clusters of heightened risk, with the upper percentiles reflecting a massive response to Taiwan’s August drills.
Strongest Arguments for Sooner
Strongest Arguments for Later
Key Uncertainties
Which day will have the largest amount of Taiwan ADIZ violations before August 13, 2026?
Key figures
Historical context
The trajectory of PLA incursions into Taiwan’s ADIZ has shifted from occasional entries to a daily operational reality. In 2021, only 972 aircraft were tracked, but by 2025, that number surged to 3,764. The current all-time single-day record of 111 aircraft was set on 14th October 2024 during the ‘Joint Sword-2024B’ exercises, which were a direct response to political statements by the Taiwanese administration. A secondary peak occurred on 29th December 2025, when 90 aircraft entered the ADIZ during the ‘Justice Mission-2025’ drills. Historical data shows that records are almost always tied to ‘named’ exercises or high-profile diplomatic events, such as the 49 aircraft detected following the 2022 visit of the U.S. Speaker of the House. These events demonstrate the PLA’s use of ‘coercive signaling’ to communicate displeasure with perceived shifts in the cross-strait status quo.
Tailwinds
Headwinds
Detailed reasoning
My analysis indicates that the median date for the largest single-day amount of Taiwan ADIZ violations is 18th November 2026. This prediction is built on a weighted evaluation of historical exercise patterns, political triggers, and the clear upward structural trend in People’s Liberation Army (PLA) activity. Since 2021, the annual volume of aircraft tracked has grown by nearly 300%, rising from 972 to 3,764 in 2025. This volume increase makes it statistically probable that the current single-day record of 111 aircraft (set on 14th October 2024) will be surpassed as the PLA continues to scale its ‘Joint Sword’ and ‘Justice Mission’ exercise frameworks.
The reasoning for the November 2026 median date considers several high-risk windows. First, the immediate term (May 2026) contains the anniversary of President Lai Ching-te’s inauguration and a U.S.-China summit. While these are triggers, recent data shows a lull in activity during high-level diplomatic engagements, such as the six-day pause in March 2026. Second, August 2026 features Taiwan’s Han Kuang 42 live-fire exercises, which historically provoke large-scale PLA counter-maneuvers. However, the largest recorded spikes (October 2024 and December 2025) have tended to occur in the final quarter of the year, during massive theater-level drills that simulate blockades or ‘joint seizure of superiority.’
I have weighted the forecast toward late 2026 because of the convergence of several factors: the potential for a large-scale response to the August Han Kuang drills, the typical ‘autumn exercise’ season associated with the PRC National Day, and the increasing sophistication of multi-domain operations involving carriers like the Liaoning and Shandong. Polymarket data supports a rising risk profile as 2026 progresses, with a higher probability of major escalation in the second half of the year compared to the first. By November 2026, the combination of accumulated political friction and the PLA’s demonstrated ability to surge over 100 aircraft into the ADIZ makes a record-breaking day highly likely. The forecast also accounts for ‘black swan’ events, such as a high-profile U.S. visit, which historically serve as the primary catalysts for setting new all-time highs in ADIZ incursions.
Key uncertainties
Conclusion