DefenseHub
Open-source analysis of geopolitics and defense: what changed, why it matters, and what to watch next.
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 147 | Founded | 5 months ago | Last Issue | 20 hours ago |
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defensehub.substack.comLatest Issues
BRIEF 021 | UKRAINE lead · Iran · Taiwan · Korea · Sep 20
TUSK: RUSSIA PLANS STRIKES ON NATO EASTERN FLANK STATES
Polish Prime Minister Donald Tusk reported on September 17 that intelligence indicates Russia plans drone and missile strikes against NATO eastern flank states, including Poland, d...
BRIEF 020 | IRAN lead · Ukraine · Taiwan · Korea · Sep 18
HOUTHIS USE SHIPPING THREATS TO DETER US-SAUDI SUPPORT
ISW reported on September 17 that the Houthis are consolidating control over the Red Sea coastal plain and threatening international shipping in the Bab al Mandeb Strait. ISW assess...
Sonic Weapons: What Military Sound Systems Can Do
DefenseHub · Thursday · Military Systems · September 17, 2026
A sailor powers on a Long Range Acoustic Device aboard USS Gerald R. Ford during a sea and anchor evolution in the Atlantic Ocean, January 24, 2025. Photo: U.S. Navy / Gladjimi...
BRIEF 019 | UKRAINE lead · Iran · Taiwan · Korea · Sep 16
UKRAINE CONFIRMS COUNTEROFFENSIVE NORTH OF LYMAN
Ukraine's 3rd Army Corps commander confirmed on September 15 that Ukrainian forces are conducting Operation Vivaldi, a counteroffensive against the Russian salient northwest of Lyman, cle...
North Korea Wants the World to Accept Its Bomb
DefenseHub · Tuesday · Hot Topics · September 15, 2026
Kim Jong Un visits a uranium enrichment facility in an undated photograph released on September 13, 2024. Credit: KCNA, via VOA.
Japan used its September 9 statement to the Internatio...
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Authors
The writers behind this newsletter.
I’m R. Planche, Editor of DefenseHub. I’m an engineer and technology leader with postgraduate training in geopolitics, applying technical rigor and open‑source discipline to the study of military technology and military history.
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