Afghanistan
vs
Iran
The relation between Afghanistan and Iran is NEUTRAL, with an overall score of 4.51 out of 10.
Chance of conflict between both countries: rare
Head to head: who leads each category
Afghanistan
43.8M
Iran
92.4M
Leads
Afghanistan
$17.8B
Iran
$362.7B
Leads
Afghanistan
$278.3M
Iran
$7.9B
Leads
Afghanistan
#57
Iran
#9
Leads
About this relationship
The relationship between Afghanistan and Iran is pragmatic but strained, shaped by shared Persian-influenced culture and Shia minority ties on one hand, and deep friction over water rights, migration, and security on the other, since the Taliban's return to power in 2021.
Iran has never formally recognized the Taliban government but has engaged pragmatically, hosting a Taliban-appointed ambassador and maintaining trade and consular relations, driven partly by the need to manage millions of Afghan refugees and shared concerns about Islamic State-Khorasan.
The long-running Helmand River water dispute, rooted in a 1973 treaty, remains a major irritant, with Iran demanding its allocated water share as Afghanistan pursues canal projects, including the Qosh Tepa canal, that Tehran fears will further reduce flows into its drought-stricken border provinces.
Since 2025, Iran has significantly accelerated deportations of Afghan migrants and refugees, citing economic and security pressures, a policy that has strained relations and drawn criticism from humanitarian organizations given deteriorating conditions inside Afghanistan.
As of August 2026, the relationship remains transactional, with both governments managing border security, water disputes, and mass migration while avoiding a full diplomatic rupture.
Strengths & comparison
The position in the international influence ranking of Iran is 9, while Afghanistan is situated 48 places below in the ranking (position 57). Iran maintains contact with 93 countries, while Afghanistan maintains contact with 34 countries. Iran maintains an excellent relation with 14 countries, while in the case of Afghanistan, this figure drops to 6.
About Afghanistan
Afghanistan is a country located in South and Central Asia. It is bordered by Pakistan to the south and east, Iran to the west, Turkmenistan, Uzbekistan, and Tajikistan to the north, and China to the far northeast. The country has a complex history and has been a battleground for various powers throughout its history.
In recent times, Afghanistan has been embroiled in conflict for several decades, starting with the Soviet invasion in 1979 and continuing with the civil war that followed. The country has also been a major theater of operations in the War on Terror, with the United States and other countries intervening in the country after the September 11th attacks in 2001.
Since then, Afghanistan has seen significant political and social upheaval, including the rise and fall of the Taliban, the establishment of a new government, and ongoing violence and conflict with various militant groups. The country has also struggled with issues such as corruption, poverty, and a lack of infrastructure and development.
Despite these challenges, Afghanistan has made some progress in recent years, including holding successful elections and making progress on issues such as women's rights and education. However, the country still faces many challenges and will likely continue to be a focus of international attention for the foreseeable future.
Geography & terrain
Landlocked, no coastline. Rugged and mountainous, dominated by the Hindu Kush range, with arid plains and deserts in the south and west. Climate is arid to semiarid, with harsh winters at altitude. Famously difficult to conquer and hold: the high passes and compartmentalized valleys favor local defenders and have worn down successive outside armies over centuries.
About Iran
Iran, officially known as the Islamic Republic of Iran, is a country located in Western Asia. It is bordered by Iraq to the west, Turkey and Armenia to the northwest, Azerbaijan to the north, Turkmenistan to the northeast, Afghanistan and Pakistan to the east, and the Persian Gulf and Gulf of Oman to the south. Iran has a population of around 83 million people and is the 18th most populous country in the world. It is also the second-largest country in the Middle East and the 17th largest in the world.
Iran has a rich and complex history, with a civilization that dates back to ancient times. It has been ruled by various empires and dynasties over the centuries, including the Persian Empire, the Arab Caliphate, and the Ottoman Empire. In 1979, following the Islamic Revolution, Iran became an Islamic republic with a theocratic government led by Shia clergy.
Geographically, Iran is divided into several regions, including the mountainous northwest, the central plateau, and the eastern region, which includes the vast desert region of Dasht-e Kavir. The country has a diverse mix of cultures, languages, and religions, with a majority of the population being Shia Muslims. Persian, also known as Farsi, is the official language of Iran.
Iran has a mixed economy that is heavily dependent on oil exports, although the country has diversified its economy in recent years to include other industries such as manufacturing, services, and tourism. The country is rich in natural resources, including oil, natural gas, and minerals.
Iran has a long-standing and contentious relationship with the United States, particularly due to its nuclear program and alleged involvement in terrorism. The country is also involved in regional conflicts, including the ongoing conflict in Syria and its support for militant groups in the Middle East. Iran's relationship with other countries in the region, including Saudi Arabia, Israel, and the United Arab Emirates, is often strained.
Geography & terrain
A high interior plateau ringed by the Zagros Mountains in the west and Alborz range in the north, with vast, largely uninhabitable deserts (Dasht-e Kavir and Dasht-e Lut) at its core. Arid to semi-arid climate. Coastline on the Persian Gulf, Gulf of Oman, and Caspian Sea. The mountain-and-desert barrier has historically funneled invaders into a handful of narrow passes, making the plateau genuinely difficult to conquer.
| Afghanistan |
Iran |
|
|---|---|---|
| Government type | Islamic emirate | Islamic republic |
| GDP | $17.8B | $362.7BLeads |
| GDP per capita | $417 | $3.9KLeads |
| Military expenditure | $278.3M | $7.9BLeads |
| Military expenditure per capita | $6 | $85Leads |
| Land military expenditure (estimation) | $222.6M | $3.9BLeads |
| Air military expenditure (estimation) | $55.7M | $1.6BLeads |
| Naval military expenditure (estimation) | n/a | $2.4B |
| Nuclear power | No | No |
| European Union | Not a member | Not a member |
| NATO | Not a member | Not a member |
Strengths & comparison
The capitals of Afghanistan and Iran are approximately 1 623 km apart (straight-line distance). There is a standard time difference of about 1.0 hours between them.
Based on shared language, currency, economic profile, borders and international groups, Afghanistan and Iran score a 15/100 similarity index. This is a fun, approximate metric — not a scientific one.
Which side is each country closer to?
Comparing Afghanistan's and Iran's scores against the same third countries shows where each one has a clear edge. Afghanistan scores noticeably higher with: Germany, Saudi Arabia, Israel, United Arab Emirates, Canada.Iran scores noticeably higher with: Pakistan, India, Japan, South Korea, Greece.
The relation between Afghanistan and Iran has decreased recently by 1.9 points, reaching an overall score of 4.5 from a previous value of 6.4.
Score history
Let's suppose a hypothetical conflict occurs between both countries:
Solo scenario: Afghanistan vs Iran
Allies scenario: Team Afghanistan vs Team Iran
In a hypothetical conflict between Afghanistan and Iran, probably, Germany will participate helping Afghanistan.
Pakistan and India will participate helping Iran.
Battle narrative
Initial phase
Iran's larger military budget and stronger air power give it an advantage in the initial stages of the conflict, with the ability to target key military positions and infrastructure.
Force composition
Iran can also call on significantly more personnel, counting both active-duty and reserve forces. Iran's advantage extends to naval power as well.
Ground campaign
Afghanistan's terrain could make a rapid ground campaign difficult: Famously difficult to conquer and hold: the high passes and compartmentalized valleys favor local defenders and have worn down successive outside armies over centuries. Khyber Pass would likely be a focal point of the campaign: The main historic route through the mountains between Afghanistan and Pakistan, long used for invasion, trade, and troop movement. Iran's terrain could make a rapid ground campaign difficult: The mountain-and-desert barrier has historically funneled invaders into a handful of narrow passes, making the plateau genuinely difficult to conquer. Strait of Hormuz would likely be a focal point of the campaign: The sole sea passage between the Persian Gulf and the Gulf of Oman, through which a large share of the world's oil exports transit. Iran's larger population could also support a prolonged resistance.
Prolonged conflict
Iran's stronger economy could help sustain military operations in a prolonged conflict. Iran also devotes a larger share of its economy to defense (about 2.2% of GDP), a more militarized posture that could be easier to sustain over time. Occupying Afghanistan outright would likely prove costly given its terrain.
Overall assessment
Iran enters this matchup as the stronger side on paper, with roughly a 73.3% probability of winning. That advantage would still need to be converted into an actual battlefield result against Afghanistan, which real conflicts rarely guarantee.
Initial phase
Iran's team enters the conflict with deeper pockets, but Afghanistan's team's stronger air power could offset that early on.
Force composition
Iran's team can also call on significantly more personnel, counting both active-duty and reserve forces. Iran's team also holds a clear naval edge.
Ground campaign
Iran's team's larger population could also support a prolonged resistance.
Coalition
Afghanistan's team goes into this conflict as a coalition of Germany and Afghanistan. Iran's team goes into this conflict as a coalition of India, Iran and Pakistan. Coordinating several countries at once adds combined strength for both sides, but also extra logistical and political complexity.
Prolonged conflict
Iran's team also devotes a larger share of its economy to defense (about 2.2% of GDP), a more militarized posture that could be easier to sustain over time.
Overall assessment
Iran's team would be more likely to prevail in this matchup, with an estimated 60.3% probability of winning. Achieving a decisive victory over Afghanistan's team — let alone occupying it — would likely be more difficult than that headline number suggests.
Want to build your own teams? Try the War Simulator.