The world has been rocked by a historic escalation in the Middle East after the confirmed killing of Iran’s Supreme Leader Ayatollah Ali Khamenei in joint strikes by the United States and Israel — an event that has triggered widespread international responses, regional instability, and urgent calls for de-escalation.
Iran has vowed fierce retaliation, while countries, alliances, and political groups around the world have spoken out, with reactions ranging from condemnation and calls for peace to outright support and concern over wider conflict.
Iran’s Reaction: Mourning and Retaliation
Iran has officially confirmed the death of Ayatollah Ali Khamenei following the US-Israeli military operation. Iranian authorities describe the strike as an “open declaration of war” against the nation and the wider Muslim community, especially the Shia population.
Iran’s new leadership has begun a 40-day mourning period, while the powerful Islamic Revolutionary Guard Corps (IRGC) has pledged severe retaliation, reporting strikes on more than two dozen military bases hosting US forces across the Middle East.
Major International Responses
1. United States
US President Donald Trump publicly confirmed the operation, calling Khamenei “one of the most evil people in history” and warning Tehran against further escalation. Trump insisted that any retaliation would be met with a force “never seen before.”
2. Israel
Israel’s defence leadership celebrated the outcome as a strategic victory. The Israeli Defence Minister praised the military operation, claiming it dealt a decisive blow to Tehran’s regional influence and pledged that Israel would continue to act with “full force.”
3. Russia
Russian President Vladimir Putin vehemently condemned the attack, describing the killing of Iran’s leader as a “cynical murder” that violates international law and “all standards of human morality.” Moscow has emphasized its longstanding strategic partnership with Tehran.
3. China
Beijing also strongly criticized the strikes, calling them a serious breach of sovereignty and a violation of the UN Charter. China urged an immediate halt to military operations and stressed the need for diplomatic solutions.
4. European Union
The EU’s foreign policy chief described Khamenei’s death as a “defining moment in Iran’s history” and stressed the urgency of diplomatic engagement to prevent further escalation.
5. United Kingdom
The UK has emphasized its concern for the safety of its citizens and military personnel amid rising regional hostilities. British defence officials have signalled support for measures to protect allies while advocating for restraint.
Responses from the Muslim World
Beyond state reactions, influential groups in the Middle East have also spoken out:
- Hamas mourned Khamenei’s death, praising his support for their cause and condemning the US-Israel operation as “heinous.”
- Yemen’s Houthi movement described the killing as a flagrant violation of international law.
- Pakistan’s prime minister expressed sorrow over the targeting of a sovereign leader and extended condolences.
- Malaysia’s prime minister condemned the attack, warning it could plunge the region into grave instability.
Civilian Reactions Around the World
The reported death of Iran’s leader has sparked powerful public reactions:
- In Pakistan, demonstrations over the strikes turned violent, resulting in deaths and prompting deployment of troops and curfews.
- Across cities in the Middle East, protests have erupted both in support of and against the killing.
- In Western capitals, some protestors celebrated Khamenei’s death, reflecting deep divisions within diaspora communities and among political activists.

