Millions Flood Tehran Streets for Khamenei’s Funeral — Chanting for Revenge Against the U.S.

Mourners dressed in black flooded Tehran’s streets Monday for the 12-hour funeral procession of Supreme Leader Ayatollah Ali Khamenei, who was killed in a joint U.S.-Israeli airstrike on February 28, 2026 — the opening strike of an ongoing military campaign against Iran. The procession followed a 10-kilometer route from Imam Hossein Square to Azadi Square; Iranian officials estimated between 15 and 20 million people attended, which would make it the largest state funeral in Iranian history [1, 2]. Crowds chanted calls for revenge against the United States and President Trump as the flag-draped coffin — which also carried the remains of family members killed in the same February strike — made its way through the capital, while loudspeaker announcements urged the massive crowd to walk slowly and avoid crushing [2, 3]. As of Monday, no formal successor as supreme leader had been publicly announced [1, 4].

Why It Sucks:

Iranian Mourners and Hardliners

• Their leader was killed by a foreign government on Iranian soil. From the perspective of Iranian citizens who venerated Khamenei, the U.S.-Israeli strike that killed their supreme leader — along with members of his family — inside Iran’s borders was an act of illegal aggression against a sovereign nation, and the tens of millions who turned out in Tehran reflect genuine grief and fury that their government was decapitated by external military force [1, 2].
• A power vacuum threatens the Islamic Republic’s survival. Khamenei ruled Iran for over three decades; with no successor announced, the clerical establishment faces its most severe legitimacy crisis since the 1979 revolution, and hardliners who built their lives around the theocratic system fear the country’s political identity may not survive the transition intact [1, 4].
• The revenge chants reflect real political pressure to act. The massive crowds calling for retaliation are not purely symbolic — Iranian militia networks across the region and IRGC factions have vowed military responses, and ordinary Iranians who may not support the regime still face the consequences of whatever escalatory path emerges from this funeral’s politics [2, 3].

Conservatives / U.S. Hawks

• The funeral proves the regime wasn’t neutralized by the strike. The sight of an estimated 15 to 20 million mourners marching through Tehran calling for revenge makes clear that eliminating Khamenei did not collapse Iran’s theocracy; the leadership vacuum may actually produce a more radical successor willing to take greater risks than Khamenei himself [1, 2].
• IRGC networks remain operational and dangerous. Despite the decapitation strike, senior IRGC commanders, missile programs, and proxy networks in Lebanon, Iraq, and Yemen remained substantially intact; hawks argue the strike’s gains have been eroded by incomplete follow-through, and the millions-strong funeral crowd shows Iranian resistance has only hardened [1, 3].
• No successor means an unpredictable escalation window. The absence of a named new supreme leader creates a dangerous period of internal factional struggle; from a security standpoint, an unstable, leaderless Iran with nuclear ambitions and a furious public demanding revenge is potentially more dangerous than a stable adversary with a known decision-maker at the top [1, 4].

Progressives / Anti-War Left

• Assassinating a sitting head of state shattered international norms. The targeted killing of Khamenei on Iranian soil by a foreign military operation has no direct precedent in the post-WWII international order; progressives argue the U.S. and Israel have dismantled legal guardrails that every government — including the United States — relies on to protect its own leaders from foreign assassination [1].
• Millions of grieving Iranians are not America’s enemies. The funeral images of ordinary Iranians — women, children, elderly citizens — weeping in the streets are a reminder that Iran’s 90 million people are not a monolith of regime loyalists; the war has radicalized a population that might otherwise have been receptive to reform, making future diplomacy exponentially harder to achieve [1, 2].
• Revenge chants create a trap for any new Iranian leader. Whoever emerges as supreme leader will face enormous domestic pressure — generated in part by this funeral’s atmosphere — to demonstrate strength against the United States; that dynamic makes de-escalation and a negotiated settlement far less politically viable for any Iranian government that hopes to maintain domestic legitimacy [2, 3].

Sources & Citations:

[1] Al Jazeera: Huge crowd joins funeral procession for Iran’s Supreme Leader Khamenei
[2] Washington Post: Mourners throng funeral procession in Tehran for Iran’s Supreme Leader Ayatollah Ali Khamenei
[3] Times of Israel: Masses accompany Khamenei funeral procession through Tehran as throngs chant for revenge
[4] CBS News: U.S.-Iran Latest — 12-hour funeral procession through streets of Tehran for slain supreme leader underway