In his first speech since a ceasefire was declared between Iran and Israel, Iranian Supreme Leader Ayatollah Ali Khamenei sent a clear message to US President Donald Trump: Tehran will “never surrender.”

The 86-year-old Khamenei, a target himself during the 12-day conflict, issued the pre-recorded statement from an undisclosed private location on Thursday. The leader has not appeared in public since Israel took out most of his military’s top brass and some of the country’s most prominent nuclear scientists in an unprecedented attack that deeply infiltrated the Islamic Republic.

Khamenei predictably declared victory over Israel and the United States in his address, but Trump’s call for “unconditional surrender” last week appears to have hit a nerve with Iran’s leader. Khamenei is a disciple of the 1979 Islamic Revolution that at its core aimed to preserve Iranian sovereignty against Western influence.