Flag of algeria Algeria vs Flag of japan Japan

International relations comparison · updated Oct 2026
5.4 / 10
Neutral

The relation between Algeria and Japan is NEUTRAL, with an overall score of 5.4 out of 10.

Chance of conflict between both countries: rare

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Head to head: who leads each category

Population
Algeria 47.4M
Japan 123.4M Leads
GDP
Algeria $287.0B
Japan $4.4T Leads
Military expenditure
Algeria $21.8B
Japan $55.3B Leads
Global influence rank
Algeria #71
Japan #11 Leads

About this relationship

Japan and Algeria maintain diplomatic and economic relations covering energy, infrastructure, trade, development and technology.

Energy is a major component of the relationship, with Algeria an important oil and gas producer and Japanese companies having interests in energy-related projects.

Japan has also supported Algeria through development cooperation, infrastructure assistance, technical training and disaster-prevention expertise.

Bilateral trade includes hydrocarbons, machinery, vehicles, electronics, chemicals and manufactured goods.

Overall, Japan and Algeria maintain broad relations centered on energy, infrastructure, development assistance, trade and technology.

·
47.4M
Population
123.4MLeads
2.4M km²Leads
Land area
364.5K km²
Algiers
Capital
Tokyo
Islam
Main religion
Shintoism, Buddhism
76 years
Life expectancy
85 years

Strengths & comparison

Population Japan is 2.6x larger
Land area Algeria is 6.53x larger

The position in the international influence ranking of Japan is 11, while Algeria is situated 60 places below in the ranking (position 71). Japan maintains contact with 110 countries, while Algeria maintains contact with 51 countries. Japan maintains an excellent relation with 16 countries, while in the case of Algeria, this figure drops to 3.

About Algeria

Algeria is a country located in North Africa, bordering the Mediterranean Sea to the north, Tunisia to the northeast, Libya to the east, Niger to the southeast, Mali and Mauritania to the southwest, and Morocco to the west. It is the largest country in Africa and the Arab world, and the tenth-largest in the world.

Algeria has a long and complex history, having been ruled by various empires and powers throughout its history, including the Roman Empire, the Ottoman Empire, and the French colonial empire. It gained independence from France in 1962, after a long and bloody struggle known as the Algerian War of Independence.

Since independence, Algeria has been ruled by a series of authoritarian governments, and has faced several internal conflicts and political instability. However, it has also made significant economic and social progress, with a strong focus on education and the development of its natural resources, particularly oil and natural gas.

Geopolitically, Algeria is an important player in the region, and is a member of the Arab League and the African Union. It has strong ties to its neighbors and other countries in the region, and is involved in regional efforts to promote stability and cooperation. It is also a major player in the global energy market, and is a key supplier of oil and natural gas to Europe and other parts of the world.

Geography & terrain

A narrow, fertile Mediterranean coastal strip gives way to the Atlas Mountains and then the vast Sahara Desert, which covers most of the country. Climate ranges from Mediterranean on the coast to hot and arid in the interior. The desert interior is a formidable natural barrier against invasion, though the populated coastal belt is more exposed to seaborne attack.

About Japan

Japan is a country located in East Asia. It is an archipelago made up of four main islands (Honshu, Hokkaido, Kyushu, and Shikoku) and thousands of smaller islands. It is located to the east of the Korean Peninsula and the Sea of Japan, and to the west of the Pacific Ocean.

Japan has a population of around 126 million people, making it the world's tenth most populous country. The majority of the population is of Japanese ethnicity, and the country has a homogenous society. The official language is Japanese, and the country has a parliamentary democracy with a constitutional monarchy. The current emperor of Japan is Emperor Naruhito.

Japan is a major economic power and is one of the world's largest exporters. It has a highly developed and technologically advanced economy, with a strong focus on manufacturing and technology. It is also a major player in the global automotive and electronics industries.

Japan has a long history of cultural and economic exchange with other countries in East Asia, and it is an important member of regional organizations such as the Association of Southeast Asian Nations (ASEAN) and the East Asia Summit (EAS). It is also a member of the United Nations and other international organizations.

In terms of foreign policy, Japan has traditionally been a pacifist country and has relied on the United States for its defense. However, in recent years, Japan has sought to play a more active role in regional and global security issues, and has made efforts to expand its military capabilities.

Geography & terrain

An island archipelago, mountainous and heavily forested — over 70% of the land is mountains, which concentrates population and agriculture into narrow coastal plains. Climate ranges from humid subtropical in the south to humid continental in the north. Like the UK, its island geography has made conventional land invasion extremely difficult; the closest historical attempt (the Mongol invasions of the 13th century) failed partly due to storms at sea.

Source: World Bank Open Data. Most recent available data
Algeria Japan
Government type Semi-presidential republic Parliamentary constitutional monarchy
GDP $287.0B $4.4TLeads
GDP per capita $6.1K $36.0KLeads
Military expenditure $21.8B $55.3BLeads
Military expenditure per capita $460Leads $448
Land military expenditure (estimation) $10.9B $13.8BLeads
Air military expenditure (estimation) $5.5B $16.6BLeads
Naval military expenditure (estimation) $5.5B $24.9BLeads
Nuclear power No No
European Union Not a member Not a member
NATO Not a member Not a member

Strengths & comparison

Military expenditure Japan is 2.53x larger
Land (estimation)
$10.9B$13.8B
Air (estimation)
$5.5B$16.6B
Naval (estimation)
$5.5B$24.9B

The capitals of Algeria and Japan are approximately 10 799 km apart (straight-line distance). There is a standard time difference of about 8.0 hours between them.

Based on shared language, currency, economic profile, borders and international groups, Algeria and Japan score a 0/100 similarity index. This is a fun, approximate metric — not a scientific one.

Which side is each country closer to?

Map legend
Closer to Algeria Closer to Japan

Comparing Algeria's and Japan's scores against the same third countries shows where each one has a clear edge. Algeria scores noticeably higher with: China, Russia, Pakistan, Palestine, Germany.Japan scores noticeably higher with: Iran, Israel, France, United States, Australia.

The relation between Algeria and Japan has decreased recently by 0.0 points, reaching an overall score of 5.4 from a previous value of 5.4.

Score history

Jan 2022: 9.1/10 Feb 2022: 6.3/10 Mar 2022: 5.4/10 May 2022: 5.4/10 Jul 2022: 5.4/10 Sep 2022: 5.4/10 Oct 2022: 5.4/10 Nov 2022: 5.4/10 Dec 2022: 5.4/10 Jan 2023: 5.4/10 Jun 2023: 5.4/10 Oct 2023: 5.4/10 Nov 2023: 5.4/10 Jan 2024: 5.4/10 Feb 2024: 5.4/10 Mar 2024: 5.4/10 May 2024: 5.4/10 Aug 2024: 5.4/10 Oct 2024: 5.4/10 Apr 2025: 5.4/10 Aug 2025: 5.4/10 Aug 2026: 5.4/10
2022 2023 2024 2025 2026
9.1 5.4

Let's suppose a hypothetical conflict occurs between both countries:

Solo scenario: Algeria vs Japan
Algeria 34.8% Japan 65.2%Winner
Allies scenario: Team Algeria vs Team Japan

In a hypothetical conflict between Algeria and Japan, probably, China and Russia will participate helping Algeria.
France will participate helping Japan.

Algeria 65.8%Winner Japan 34.2%
Map legend
Algeria & allies Japan & allies
Battle narrative

Initial phase

With both the bigger war chest and the stronger air force, Japan is well placed to seize the initiative early, striking key military and infrastructure targets first.

Force composition

Japan's advantage extends to naval power as well.

Ground campaign

Algeria's terrain could make a rapid ground campaign difficult: The desert interior is a formidable natural barrier against invasion, though the populated coastal belt is more exposed to seaborne attack. Port of Algiers would likely be a focal point of the campaign: Algeria's capital and largest port, the primary entry point for seaborne supplies and reinforcements. Japan's terrain could make a rapid ground campaign difficult: Like the UK, its island geography has made conventional land invasion extremely difficult; the closest historical attempt (the Mongol invasions of the 13th century) failed partly due to storms at sea. Tsushima Strait would likely be a focal point of the campaign: The passage between Japan and Korea that any naval force must cross to move between the Sea of Japan and the East China Sea. Japan's larger population could also support a prolonged resistance.

Prolonged conflict

Japan's stronger economy could help sustain military operations in a prolonged conflict. Algeria also devotes a larger share of its economy to defense (about 7.6% of GDP), a more militarized posture that could be easier to sustain over time. Occupying Algeria outright would likely prove costly given its terrain.

Overall assessment

Japan would be more likely to prevail in this matchup, with an estimated 65.2% probability of winning. Achieving a decisive victory over Algeria — let alone occupying it — would likely be more difficult than that headline number suggests.

Want to build your own teams? Try the War Simulator.

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