World War Two Army Size by Country 2025
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5 Countries with the Largest Armies in World War II
Country | Army Size↓ | Additional Details | |
|---|---|---|---|
 | Russia | 34.5M | Data shown pertains to the USSR, which included not only modern Russia but also 14 additional modern countries (listed individually). |
 | Germany | 18.1M | |
 | United States | 16.4M | |
 | China | 14M | In addition to the total shown, the WWII-era country Manchuku fielded an army of 200,000 and has since been absorbed into mainland China, forming the region Manchuria. |
 | Japan | 9.1M | |
 | Italy | 9.1M | |
 | United Kingdom | 5.9M | UK totals were originally credited specifically to Great Britain (England, Scotland, Wales). As such, it is unclear whether they include soldiers from Northern Ireland, Guernsey, Jersey, or Isle or Man. |
 | France | 5M | |
 | India | 2.6M | |
 | Poland | 2M | |
 | Romania | 2M | |
 | Canada | 1.1M | |
 | Australia | 1M | |
 | Finland | 650K | |
 | Belgium | 600K | |
 | Hungary | 600K | |
 | Greece | 540K | |
 | Bulgaria | 450K | |
 | Netherlands | 400K | |
 | South Africa | 330K | |
 | New Zealand | 204K | |
 | Croatia | 200K | Part of the 1,500,000 troops of Yugoslavia, which has since split into modern-day Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia. |
 | Norway | 90K | |
 | Slovakia | 80K | |
 | Ukraine | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Uzbekistan | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Kazakhstan | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Tajikistan | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Azerbaijan | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Belarus | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Turkmenistan | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Kyrgyzstan | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Serbia | Part of the 1,500,000 troops of Yugoslavia, which has since split into modern-day Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia. | |
 | Georgia | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Bosnia and Herzegovina | Part of the 1,500,000 troops of Yugoslavia, which has since split into modern-day Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia. | |
 | Moldova | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Armenia | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Lithuania | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Slovenia | Part of the 1,500,000 troops of Yugoslavia, which has since split into modern-day Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia. | |
 | Latvia | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | North Macedonia | Part of the 1,500,000 troops of Yugoslavia, which has since split into modern-day Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia. | |
 | Estonia | Contributed to the 34,476,000 troops of the USSR, which later split into 15 current countries. | |
 | Montenegro | Part of the 1,500,000 troops of Yugoslavia, which has since split into modern-day Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia. |
- In addition to the listed countries, other Allied nations contributed 620,000 troops.
- A number of countries that participated in World War Two have dissolved and been replaced by successor countries.
- The Soviet Union was succeeded by Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.
- Yugoslavia was succeeded by Bosnia and Herzegovina, Croatia, Kosovo, Montenegro, North Macedonia, Serbia, and Slovenia.
- Manchukuo is now modern day Manchuria, a region of China.
- Other allied nations may include the Japanese colonies of Korea and Taiwan.
