President Donald Trump fumed over Iranian Supreme Leader Ayatollah Ali Khamenei’s declaration of victory over the United States and Israel, saying it showed ingratitude after sparing him from a “very ugly” death.

Upon the conclusion of the “12 Day War” on Tuesday, following a ceasefire agreement brokered by the Trump administration, Iran, Israel, and the U.S. all declared victory. Khamenei made his own proclamation of victory on Thursday, adding that his country “delivered a hand slap to America’s face” in the process. Trump met his proclamation with an explosive post on Truth Social, questioning his legitimacy and taking credit for his survival during the war.