Why do Iran and Israel hate each other so much when they have no shared border?
Why Do Iran and Israel Hate Each Other So Much When They Have No Shared Border?
The animosity between Iran and Israel represents one of the most consequential geopolitical rivalries of the modern era, yet these two nations share no common border and their peoples have no historical grievances dating back centuries. This paradox of geography versus hostility has shaped Middle Eastern politics for decades, influencing conflicts from Lebanon to Yemen and threatening to drag the world into a broader regional war.
The current escalation between Iran and Israel, marked by direct missile exchanges and threats of further retaliation, underscores how this rivalry has evolved from political opposition to existential confrontation. Yet the roots of this conflict lie not in ancient hatreds or border disputes, but in relatively recent geopolitical shifts that transformed former allies into bitter enemies.
Historical Context: From Allies to Enemies
The Iran-Israel relationship wasn't always characterized by hostility. During the Shah's rule (1941-1979), Iran maintained diplomatic relations with Israel and even provided oil to the Jewish state during the 1973 Arab oil embargo. This cooperation was driven by shared strategic interests: both nations felt threatened by Arab nationalism and Soviet influence in the region.
Source: Trita Parsi, "Treacherous Alliance: The Secret Dealings of Israel, Iran, and the United States"
"The Shah's Iran and Israel shared a common strategic outlook based on their position as non-Arab states in a hostile Arab environment, leading to extensive military and intelligence cooperation throughout the 1960s and 1970s."
The transformation began with Iran's Islamic Revolution in 1979, which brought Ayatollah Khomeini to power. The new theocratic regime fundamentally altered Iran's foreign policy priorities, replacing the Shah's pro-Western orientation with an anti-imperialist ideology that viewed Israel as an illegitimate colonial outpost.
Ideological Foundations of the Conflict
The Iran-Israel rivalry is fundamentally ideological rather than territorial. Iran's Islamic Republic has built its legitimacy partly on opposition to what it calls the "Zionist entity," viewing Israel's existence as an affront to Islamic values and Palestinian rights.
This ideological stance serves multiple purposes for Iran's leadership. It positions Iran as the leader of the Muslim world's resistance against Western influence in the Middle East. By championing the Palestinian cause, Iran appeals to Muslim populations across the region, even among Sunni-majority countries that might otherwise oppose Shia Iran on sectarian grounds.
Source: Karim Sadjadpour, Carnegie Endowment for International Peace
"Iran's hostility toward Israel serves as a unifying force that transcends the Sunni-Shia divide and allows Tehran to position itself as the authentic voice of Muslim resistance against Western imperialism."
From Israel's perspective, Iran represents an existential threat due to its nuclear program, support for terrorist organizations, and explicit calls for Israel's destruction. Israeli leaders view Iran's growing influence across the region as a strategic encirclement that must be countered through military and diplomatic means.
The Nuclear Dimension
Iran's nuclear program has become a central flashpoint in the rivalry. While Iran maintains its nuclear activities are for peaceful purposes, Israel and much of the international community suspect Tehran is developing nuclear weapons capabilities.
Israel's concerns are rooted in Iran's stated positions toward the Jewish state. Iranian leaders have made hostile statements toward Israel, including former President Mahmoud Ahmadinejad's controversial 2005 remarks about Israel vanishing "from the page of time." Supreme Leader Ali Khamenei has consistently referred to Israel as a "cancerous tumor" that must be removed.
Source: International Atomic Energy Agency (IAEA) Reports 2003-2023
"Iran has consistently failed to provide satisfactory explanations for uranium particles found at undeclared sites, raising questions about the completeness and correctness of Iran's safeguards declarations."
For Israel, the prospect of a nuclear-armed Iran represents an unacceptable threat. Unlike other nuclear powers, Iran has explicitly threatened Israel's existence, leading Israeli leaders to consider military action to prevent Iranian nuclear weapons development. This has created a dangerous dynamic where both sides prepare for potential conflict while engaging in a complex game of deterrence.
Proxy Warfare Across the Region
Unable to confront each other directly due to geographic separation, Iran and Israel have engaged in extensive proxy warfare across the Middle East. This shadow conflict has become a defining feature of regional politics, with both nations supporting opposing sides in multiple conflicts.
Iran's "Axis of Resistance" includes Hezbollah in Lebanon, Hamas in Gaza, the Houthis in Yemen, and various Shia militias in Iraq and Syria. These groups receive funding, weapons, and training from Iran, creating a network of proxies that can threaten Israeli interests and those of its allies.
Source: U.S. State Department Country Reports on Terrorism 2023
"Iran continued to be the leading state sponsor of terrorism, providing support to numerous terrorist groups including Hezbollah, Hamas, and Palestinian Islamic Jihad."
Israel, meanwhile, has conducted numerous airstrikes against Iranian targets and proxy forces in Syria, Lebanon, and Iraq. According to Israeli military sources, Israel has carried out over 400 strikes in Syria alone between 2017-2021. These operations, part of Israel's "campaign between wars" strategy, aim to prevent Iran from establishing a permanent military presence near Israeli borders and transferring advanced weapons to its proxies.
Regional Power Competition
Beyond ideology and security concerns, the Iran-Israel rivalry reflects a broader competition for regional influence. Both nations seek to shape the Middle East's political order, but their visions are fundamentally incompatible.
Iran's regional strategy aims to create a corridor of influence stretching from Iran through Iraq and Syria to Lebanon. This would give Tehran significant leverage over regional affairs and direct access to Israel's northern border through Hezbollah.
Israel's counter-strategy involves building partnerships with Sunni Arab states that share concerns about Iranian expansion. The Abraham Accords, which normalized relations between Israel and several Arab nations, represent a significant diplomatic achievement in this regard. These agreements have created a de facto alliance against Iranian influence, though they have also intensified Iran's hostility toward Israel.
Source: Middle East Institute Analysis, 2021
"The normalization of relations between Israel and Arab states represents a fundamental shift in Middle Eastern geopolitics, creating new partnerships based on shared concerns about Iranian regional behavior."
The Role of External Powers
The Iran-Israel rivalry cannot be understood without considering the role of external powers, particularly the United States. America's strong support for Israel and its opposition to Iran's nuclear program have made it a central player in this conflict.
U.S. sanctions on Iran, military aid to Israel, and diplomatic support have shaped the dynamics of the rivalry. The withdrawal from the Iran nuclear deal (JCPOA) under President Trump and the subsequent "maximum pressure" campaign intensified tensions, while efforts to revive the agreement under President Biden have faced significant obstacles.
Russia and China have also played important roles, with both nations maintaining relationships with Iran that complicate Western efforts to isolate Tehran. Russia's cooperation with Iran in Syria and China's economic ties with Iran have provided Tehran with alternatives to Western partnerships, reducing the effectiveness of sanctions and diplomatic pressure.
Current Escalation and Future Implications
Recent events have brought the Iran-Israel rivalry to a dangerous new level. Direct military exchanges, including Iran's missile and drone attacks on Israeli territory in April 2024 following Israeli strikes on Iranian diplomatic facilities in Damascus, have crossed previous red lines and raised the specter of full-scale war.
Source: Council on Foreign Relations, April 2024
"The direct exchange of fire between Iran and Israel represents a qualitative escalation that increases the risk of miscalculation and broader regional conflict involving multiple state and non-state actors."
This escalation has global implications. Oil markets have reacted nervously to the possibility of conflict affecting Persian Gulf shipping lanes, while allies of both nations face pressure to choose sides. The involvement of U.S. forces in defending Israel and the potential for attacks on American assets in the region could draw the United States into a broader Middle Eastern war.
Rather than ideological hatred, the Iran-Israel rivalry may reflect a classic case of regional power competition that would have emerged regardless of the 1979 revolution. Two aspiring regional hegemons with overlapping spheres of influence—from the Levant to the Persian Gulf—were arguably destined to clash as both sought to fill the power vacuum left by declining Ottoman and British influence in the Middle East.
The characterization of this conflict as one-sided Iranian aggression overlooks how Israeli actions may have systematically strengthened Tehran's regional position. Each Israeli military operation against Iranian proxies potentially validates Iran's narrative of resistance while demonstrating to regional actors that alignment with Tehran offers protection against Israeli power projection, creating a self-reinforcing cycle that serves Iranian strategic interests.
Key Takeaways
- The Iran-Israel rivalry is ideological and strategic rather than territorial, stemming from Iran's 1979 Islamic Revolution rather than historical grievances
- Iran's nuclear program represents the most dangerous dimension of the conflict, with Israel viewing a nuclear-armed Iran as an existential threat
- Both nations engage in extensive proxy warfare across the Middle East, using allied groups to attack each other's interests
- The rivalry reflects broader competition for regional influence, with Iran seeking to create a corridor of influence while Israel builds partnerships with Sunni Arab states
- External powers, particularly the United States, play crucial roles in shaping the conflict through military aid, sanctions, and diplomatic initiatives
- Recent direct military exchanges have escalated the conflict to dangerous new levels, raising the risk of broader regional war with global implications
- The conflict's resolution requires addressing fundamental ideological differences and competing visions for regional order, making diplomatic solutions extremely challenging


