Khamenei aide vows harsh response to any aggression after Trump warning
Ali Shamkhani in his first appearance after being allegedly wounded in Israeli attacks in June 2025
A senior aide to Iran’s supreme leader warned on Monday that any new aggression would draw a harsher response, following comments by US President Donald Trump about possible further attacks on Iran.
“Iran’s missile and defensive capabilities are neither containable nor in need of permission. Any act of aggression will be met with a harsh, immediate response beyond the imagination of its planners,” Ali Shamkhani, a top adviser to Supreme Leader Ali Khamenei, posted on X.
His comments came after Trump said on Monday he would support possible Israeli strikes on Iran if the Islamic Republic develops its ballistic missile or nuclear programs, warning Tehran against rebuilding military capabilities destroyed in a brief June war.
“I’m hearing that Iran is trying to recover — if that happens, we’ll have to hit them hard,” Trump said. Asked whether he would support Israeli strikes on Iran if it further develops its ballistic missile and nuclear programs, he replied: “If they continue with missiles, yes, quickly. If they continue with nuclear, immediately.”
Shamkhani, a member of Iran's Supreme Defense Council, warned that “in Iran’s defense doctrine, some responses are determined before a threat even reaches the execution stage."
The United States held five rounds of negotiations with Iran over its nuclear program earlier this year, for which Trump set a 60-day deadline. When no agreement was reached by the 61st day on June 13, Israel launched a surprise military offensive, followed by US strikes on June 22 targeting key nuclear facilities in Isfahan, Natanz and Fordow.
The attacks killed several Iranian officials and nuclear scientists as well as hundreds of military personnel and civilians, while Iranian counterattacks killed 32 Israeli civilians and an off-duty soldier.
Iran denies seeking nuclear weapons and says its nuclear program is for peaceful purposes, and Khamenei has said dealing with Trump is beneath the dignity of the Islamic Republic, while Iranian officials have rejected US demands to end uranium enrichment and curb missile capabilities.