Data

Armed forces personnel as a share of total population

What you should know about this indicator

  • Population is the most commonly used metric throughout Our World in Data. It is used directly to understand population growth over time, and indirectly to calculate per-capita indicators, making it easier to compare countries of different sizes.
  • We construct this indicator by combining multiple sources covering different periods.
    • HYDE v3.3 (2023): historical estimates from 10,000 BCE to 1799.
    • Gapminder v7 (2022): for 1800-1949.
    • UN World Population Prospects (2024): for 1950 onwards, including 2100 projections.
    • Gapminder Systema Globalis (2023): additional source for former countries (Yugoslavia, USSR, etc.)
  • Breaks in the data may occur at the boundaries between sources due to their methodological differences.
  • You can read more about the sources and methodology in our dedicated article. We also provide a table of sources showing the source we use for each country-year.
  • We calculate geographical aggregates (continents, income groups, etc.) by summing individual country populations. For years before 1800, we rely directly on HYDE's values for continents to ensure historical consistency.
Source
The Military Balance - International Institute for Strategic Studies, via World Bank (2025); Population based on various sources (2024)with major processing by Our World in Data
Last updated
September 8, 2025
Next expected update
September 2026
Date range
1985–2020
Unit
%

What you should know about this indicator

  • Population is the most commonly used metric throughout Our World in Data. It is used directly to understand population growth over time, and indirectly to calculate per-capita indicators, making it easier to compare countries of different sizes.
  • We construct this indicator by combining multiple sources covering different periods.
    • HYDE v3.3 (2023): historical estimates from 10,000 BCE to 1799.
    • Gapminder v7 (2022): for 1800-1949.
    • UN World Population Prospects (2024): for 1950 onwards, including 2100 projections.
    • Gapminder Systema Globalis (2023): additional source for former countries (Yugoslavia, USSR, etc.)
  • Breaks in the data may occur at the boundaries between sources due to their methodological differences.
  • You can read more about the sources and methodology in our dedicated article. We also provide a table of sources showing the source we use for each country-year.
  • We calculate geographical aggregates (continents, income groups, etc.) by summing individual country populations. For years before 1800, we rely directly on HYDE's values for continents to ensure historical consistency.
Source
The Military Balance - International Institute for Strategic Studies, via World Bank (2025); Population based on various sources (2024)with major processing by Our World in Data
Last updated
September 8, 2025
Next expected update
September 2026
Date range
1985–2020
Unit
%

Sources and processing

This data is based on the following sources

The Military Balance - International Institute for Strategic Studies, via World Bank – World Development Indicators

The World Development Indicators (WDI) is the primary World Bank collection of development indicators, compiled from officially-recognized international sources. It presents the most current and accurate global development data available, and includes national, regional and global estimates.

Retrieved on
September 8, 2025
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
The Military Balance, International Institute for Strategic Studies. Indicator MS.MIL.TOTL.P1 (https://data.worldbank.org/indicator/MS.MIL.TOTL.P1). World Development Indicators - World Bank (2025). Accessed on 2025-09-08.

The World Development Indicators (WDI) is the primary World Bank collection of development indicators, compiled from officially-recognized international sources. It presents the most current and accurate global development data available, and includes national, regional and global estimates.

Retrieved on
September 8, 2025
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
The Military Balance, International Institute for Strategic Studies. Indicator MS.MIL.TOTL.P1 (https://data.worldbank.org/indicator/MS.MIL.TOTL.P1). World Development Indicators - World Bank (2025). Accessed on 2025-09-08.

Various sources – Population

Our World in Data builds and maintains a long-run dataset on population by country, region, and for the world, based on various sources.

You can find more information on these sources and how our time series is constructed on this page: https://ourworldindata.org/population-sources

Retrieved on
July 11, 2024
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
The long-run data on population is based on various sources, described on this page: https://ourworldindata.org/population-sources

Our World in Data builds and maintains a long-run dataset on population by country, region, and for the world, based on various sources.

You can find more information on these sources and how our time series is constructed on this page: https://ourworldindata.org/population-sources

Retrieved on
July 11, 2024
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
The long-run data on population is based on various sources, described on this page: https://ourworldindata.org/population-sources

How we process data at Our World in Data

All data and visualizations on Our World in Data rely on data sourced from one or several original data providers. Preparing this original data involves several processing steps. Depending on the data, this can include standardizing country names and world region definitions, converting units, calculating derived indicators such as per capita measures, as well as adding or adapting metadata such as the name or the description given to an indicator.

At the link below you can find a detailed description of the structure of our data pipeline, including links to all the code used to prepare data across Our World in Data.

Read about our data pipeline
Notes on our processing step for this indicator

We estimated this indicator by dividing the total number of armed forces personnel by the total population. The population estimates come from a long-run dataset maintained by Our World in Data.

Reuse this work

  • All data produced by third-party providers and made available by Our World in Data are subject to the license terms from the original providers. Our work would not be possible without the data providers we rely on, so we ask you to always cite them appropriately (see below). This is crucial to allow data providers to continue doing their work, enhancing, maintaining and updating valuable data.
  • All data, visualizations, and code produced by Our World in Data are completely open access under the Creative Commons BY license. You have the permission to use, distribute, and reproduce these in any medium, provided the source and authors are credited.

Citations

How to cite this page

To cite this page overall, including any descriptions, FAQs or explanations of the data authored by Our World in Data, please use the following citation:

“Data Page: Armed forces personnel as a share of total population”. Our World in Data (2025). Data adapted from The Military Balance - International Institute for Strategic Studies, via World Bank, Various sources. Retrieved from https://auto-epoch.owid.pages.dev:8789/20250925-233948/grapher/armed-forces-personnel-percent.html [online resource] (archived on September 25, 2025).

How to cite this data

In-line citationIf you have limited space (e.g. in data visualizations), you can use this abbreviated in-line citation:

The Military Balance - International Institute for Strategic Studies, via World Bank (2025); Population based on various sources (2024) – with major processing by Our World in Data

Full citation

The Military Balance - International Institute for Strategic Studies, via World Bank (2025); Population based on various sources (2024) – with major processing by Our World in Data. “Armed forces personnel as a share of total population” [dataset]. The Military Balance - International Institute for Strategic Studies, via World Bank, “World Development Indicators 122”; Various sources, “Population” [original data]. Retrieved November 2, 2025 from https://auto-epoch.owid.pages.dev:8789/20250925-233948/grapher/armed-forces-personnel-percent.html (archived on September 25, 2025).