Grey Zone
Brief
Independent geopolitical analysis and intelligence tradecraft from a former Australian intelligence practitioner. Structured thinking for an uncertain world.
16 YEARS ADF
INTELLIGENCE PROFESSIONAL, SPECIAL OPERATIONS
COUNTER-TERRORISM (MEAO)
EMBASSY EVACUATION PLANNING (UKRAINE 2022)
US JOINT SERVICE COMMENDATION MEDAL
ANU NATIONAL SECURITY POLICY
Recent Assessments
How intelligence analysts actually think — and why most public commentary doesn't
An introduction to ACH, KAC, and I&W — the formal tradecraft techniques that separate structured analysis from opinion.
The next six months in the Indo-Pacific — three hypotheses, tested
A full Analysis of Competing Hypotheses on what happens next in the Taiwan Strait, South China Sea, and Pacific Island competition.
Why Russia isn't losing — and why that's a harder truth than the ones you're hearing
A structured assessment of the Russia-Ukraine attritional balance using indicators that most Western commentary is ignoring.
I was in Kyiv in February 2022 — here's what the commentary got wrong
A practitioner's account of what the embassy evacuation planning looked like from inside, and the analytical failures that preceded it.
How intelligence finds networks — a methodology, without the classified parts
The publicly discussable version of how battlefield data analysis works in practice, and how the same thinking applies to open-source intelligence.
Theatres Under Watch
Active monitoring across the world's critical flashpoints. Each theatre is assessed using structured analytical methodology with specific indicators and warnings.
Structured Analytical Techniques
Every assessment published on Grey Zone Brief uses named, formal analytical methodology. Not opinion presented as analysis — structured thinking you can audit.
Analysis of Competing Hypotheses
Test multiple hypotheses against evidence simultaneously. Identify which evidence is most diagnostic — and which hypothesis survives scrutiny.
Structured Dissent
Build the strongest case against the leading hypothesis. If your analysis can survive its best counter-argument, it's worth publishing.
Indicators & Warnings
Identify specific, observable indicators that would confirm or deny an assessment. Then watch for them. This is how you avoid being wrong for too long.
Matthew Lonsdale
Matthew Lonsdale is the founder of Grey Zone Brief, an independent geopolitical and intelligence publication. He served sixteen years in the Australian Defence Force, including five years as an intelligence professional in Special Operations. His deployments included counter-terrorism operations in the Middle East between 2016 and 2019, and embassy evacuation planning in Ukraine ahead of the 2022 Russian invasion, followed by redeployment with the Support Response Team to Poland and Germany to support Australia's lethal aid contributions. He was awarded the US Joint Service Commendation Medal and two ADF commendations for his contribution to the global disruption of terrorism networks. He is completing a Graduate Certificate in National Security Policy at the Australian National University. Views are his own; no classified information is used in Grey Zone Brief content.
LinkedIn profileDecision Advantage Starts Here
Structured intelligence analysis. Named methodology. No opinion dressed as insight. Choose the level of access that matches your need.
Weekly long-form analysis on YouTube and the free newsletter
- Weekly YouTube episode
- Weekly newsletter essay (excerpt)
- YouTube Shorts 3x/week
- LinkedIn and X threads
Full access to every assessment, indicator watch list, and ACH matrix
- Everything in Free
- Full essays (no paywall)
- Weekly indicator watch list (PDF)
- Monthly ACH matrix download
- Paid subscriber comment access
- Full back catalogue
Full access plus all four quarterly Forecast reports and founding recognition
- Everything in Monthly
- 4x Quarterly Forecast Reports included
- Quarterly live Q&A sessions
- Founding member recognition
All prices in AUD. Cancel anytime. No questions asked.