The aging leader’s message was defiant but somber, delivered in front of a tan curtain flanked by an Iranian flag and a portrait of his predecessor.

The U.S. Department of Homeland Security warned Americans of a "heightened threat environment" on June 22 that could include attacks on U.S. soil. That fear appeared to dissipate when Iran attacked a United States military base in Qatar June 23, injuring no one.

Iran carried out a missile attack on the United States’ Al Udeid Air Base in Qatar on Monday, according to a U.S. official, two days after the U.S. struck three nuclear sites in Iran. There are no reports of casualties at the base,