军力指数Military Power Index

Military power (national defense strength) is a country's comprehensive capability to safeguard its sovereignty, security, and development interests, deter potential adversaries, and participate in international security governance; it is the most central hard-power dimension of national power. Measuring military power cannot look only at the scale of "many soldiers and generals, many tanks and aircraft"; one must also look at equipment quality, the degree of modernization, strategic deterrence capability, and — especially importantly — whether a country can rely on an independent defense-industrial system to "fight without depending on others."

Common international military-power rankings such as Global Firepower (GFP) are mainly linear weightings of dozens of equipment counts and troop numbers. Though intuitive, they are clearly biased: they value "quantity" over "quality" and "scale" over "autonomy," and find it hard to reflect intergenerational equipment differences and the strategic foundation of defense-industrial autonomy. This index is independently compiled by the CPPPS proprietary algorithm; it does not directly reproduce any public military ranking, but computes rankings itself from underlying public data such as military expenditure, troop strength, equipment level, degree of modernization, nuclear capability, military-industrial autonomy (rate of indigenous equipment), and defense autonomy.

The CPPPS Military Power Index follows a unified four-dimensional framework: Scale (military expenditure, troop strength) measures the mobilizable material and human base; Quality (equipment level, modernization, nuclear capability) measures the "gold content" of equipment generations, informatization, and strategic deterrence; Innovation (military-industrial autonomy / rate of indigenous equipment) measures the capability for independent R&D and equipment self-sufficiency; and Contribution (defense autonomy) is a CPPPS signature dimension that measures the completeness of the defense-industrial system and the degree of strategic autonomy of "not depending on imports" — defense autonomy is both the highest form of contribution to national security and the fundamental guarantee against being "choked off" in wartime. The four dimensions are range-standardized to [0,1] and then combined by weighted summation, with large-span scale indicators log-transformed.

Evaluation results: the United States, China, Russia, France, and Israel rank in the top five. Overall, major powers that combine huge military expenditure, advanced equipment systems, strategic nuclear deterrence, and a high degree of defense autonomy firmly hold the top positions; countries with large military expenditure and troop strength but whose equipment depends on imports and whose defense autonomy is weak rank clearly lower (even when their "paper scale" is considerable) — this is precisely the core distinction between the CPPPS proprietary algorithm and a "scale-only" approach. The ranking data are based on approximate values from public common knowledge (marked "subject to official sources"), permanently free and public, for research and reference only.

The essence of military power is a country's comprehensive capability, in peacetime and wartime, of "how much it can mobilize, how well it can fight, whether it can fight sustainably, and whether it will be cut off from supplies once fighting begins." CPPPS decomposes this into four measurable dimensions:

Each indicator is range-standardized to [0,1] (inverse indicators take 1−x), large-span scale indicators are first natural-log-transformed and then standardized, and the four dimensions are combined by weighted summation:

Here "′" denotes the [0,1] value after range standardization. Scale (0.30) and quality (0.35) constitute the main body, while innovation (0.20) and contribution (0.15) together embody CPPPS's emphasis on "autonomous defense industry"; the four dimensional weights sum to 1. Because the four dimensions are highly orthogonal (a country with large scale does not necessarily have high quality, and a country with strong autonomy does not necessarily have large scale), the rankings unfold naturally by composite score and are divided into tiers by rank.

The basis of the weight design: the main body of military power is "scale + quality," so the two total 0.65, with quality carrying the highest weight (0.35) to reflect "quality > quantity"; innovation (0.20) and contribution (0.15) together total 0.35, concentratedly embodying CPPPS's emphasis on "autonomous defense industry" — avoiding the overestimation of "purchased military power" (high expenditure, low autonomy).

This index does not reproduce the results of public military-power rankings such as Global Firepower, but builds its own model, for three reasons: first, GFP-type lists are mainly linear weightings of equipment counts and troop numbers, valuing "quantity" over "quality" and finding it hard to reflect intergenerational equipment differences (a fifth-generation fighter and a second-generation fighter are often treated as equally weighted on such lists); second, their weights and "correction factors" are opaque and highly dependent on self-reported data, producing systematic bias; third, GFP-type lists almost never incorporate the "military-industrial autonomy / defense autonomy" dimension, and thus cannot reflect the essential difference between "purchased military power" and "self-built military power." The CPPPS algorithm takes quality as its core and defense autonomy as its signature, striving to produce an independent, reproducible evaluation that highlights strategic autonomy.

Military expenditure uses public approximate values based on the SIPRI (Stockholm International Peace Research Institute) Military Expenditure Database and the IISS (International Institute for Strategic Studies) Military Balance (China's military expenditure is in official-exchange-rate terms; if measured by purchasing power parity or actual equipment increments, China's actual military investment is usually underestimated); troop strength, equipment level, and degree of modernization are comprehensively estimated with reference to public materials such as IISS's Military Balance; nuclear capability references SIPRI's annual nuclear-forces report and FAS (Federation of American Scientists) nuclear-arsenal estimates; military-industrial autonomy and defense autonomy are CPPPS comprehensive estimates (0-100) based on public information such as countries' equipment-localization rates, the completeness of military-industrial supply chains, and import dependence for key components. All data are approximate values from public common knowledge (around 2024-2025), uniformly marked "subject to official sources."

Limitations: first, military expenditure is affected by exchange rates and accounting standards (official exchange rate vs. purchasing power parity), so cross-country comparison has biases; second, equipment level, modernization, military-industrial autonomy, and defense autonomy are expert composite estimates (0-100) with relatively strong subjectivity and limited precision; third, data on nuclear capability and on the military expenditure and troop strength of countries such as North Korea are highly opaque, resulting in large estimation errors; fourth, this model does not include factors that are hard to quantify, such as geography, alliance systems, and logistical-mobilization potential. This index is for research and reference only and does not constitute any security-policy or investment advice.