Sources and data policy

This registry identifies the source families cited by the underlying datasets. A source-family tag is not a claim that every figure has been independently verified. Undated or uncited legacy records are labeled accordingly on country pages.

Source registry

IISS-MB25 — IISS, The Military Balance 2025 (2025)
IISS-MB26 — IISS, The Military Balance 2026 (2026)
FG-WAF26 — FlightGlobal, World Air Forces 2026 (2026)
SIPRI-MILEX — SIPRI Military Expenditure Database (2025 release)
SIPRI-AT — SIPRI Arms Transfers Database (rolling)
FAS-NUKES — FAS, Status of World Nuclear Forces (+ SIPRI Yearbook nuclear summaries) (rolling)
GAO-SUSTAIN — GAO weapon-system sustainment & tactical aircraft reports (rolling)
CRS-REPORTS — Congressional Research Service naval & air-defense program reports (rolling)
NATO-PUBS — NATO official publications (rolling)
MOD-NATIONAL — National defense ministry / operator equipment pages & releases (US Army, Japan MOD, UK MOD, France Armed Forces Ministry, Turkish SSB, Israeli MoD, ROK DAPA, …) (rolling)
MDAA — Missile Defense Advocacy Alliance system pages (rolling)
CSIS-MT — CSIS Missile Threat system profiles (rolling)
NAVAL-NEWS — Naval News + official navy/shipbuilder releases (rolling)
ORYX — Oryx equipment-loss tracking (Russia/Ukraine wartime mix adjustments) (rolling)
OSINT-PROFILES — Army Recognition, Janes-style public profiles, manufacturer pages (generation/rubric classification only) (rolling)
TI-GDI — Transparency International, Government Defence Integrity Index (tail heuristic only) (latest edition)
UCS-SATDB — UCS Satellite Database (C4ISR banding) (latest edition)
IMF-WEO — IMF World Economic Outlook database (latest edition)
WTO-STATS — WTO Stats (rolling)
UNCTAD-STAT — UNCTADstat (rolling)
IMF-COFER — IMF COFER (currency composition of FX reserves) (rolling)
SWIFT-RMB — SWIFT RMB Tracker (rolling)
UNCTAD-WIR — UNCTAD World Investment Report (latest edition)
SWF-INST — Global SWF / SWF Institute public rankings (rolling)
SIA-SEMI — SIA/OECD semiconductor reporting, TrendForce market-share reporting, ASML/TSMC/Samsung/Intel public materials (rolling)
UNOOSA — UNOOSA space object registry + agency launch records (rolling)
WIPO-PCT — WIPO PCT statistics (rolling)
OECD-MSTI — OECD Main Science & Technology Indicators (+ World Bank R&D) (rolling)
TOP500 — TOP500 supercomputer list (latest edition)
LOWY-GDI — Lowy Global Diplomacy Index (latest edition)
ORG-ROSTERS — UNSC, NATO, EU, AU, ASEAN, GCC, OIC, BRICS, SCO official rosters & treaty status pages (rolling)
BF-SOFTPOWER — Brand Finance Global Soft Power Index (+ UNESCO/OECD student data, Olympic/FIFA records, Ethnologue) (latest edition)
EIA-INTL — EIA international energy statistics (+ OPEC) (rolling)
EI-STATREV — Energy Institute Statistical Review of World Energy (latest edition)
USGS-MCS — USGS Mineral Commodity Summaries (latest edition)
FAOSTAT — FAOSTAT food/agriculture statistics (rolling)
OEC — OEC trade data (food exports, chokepoint context) (rolling)

How to interpret the figures

Inventory counts, readiness estimates and equipment-effectiveness judgments describe different things. Figures may refer to different observation periods. Model-level inventories may be reconciled to published aggregate totals. Consult the methodology and each country’s data dates before comparing.