Where do I start...

In 1979–1981, Iranian revolutionary forces and aligned militants seized the U.S. Embassy in Tehran and held 52 Americans hostage during the Iran hostage crisis.

In 1983, IRGC-backed proxies carried out the Beirut barracks bombing, a suicide truck attack that killed 241 U.S. service members in Beirut.

In 1983–84, IRGC-backed proxies bombed the U.S. Embassy in Beirut, killing dozens of Americans and local staff.

In 1984, IRGC-backed proxies kidnapped CIA station chief William Francis Buckley in Beirut, held and tortured him, and he died in captivity in 1985.

In 1984, militants linked to IRGC-backed Hezbollah hijacked Kuwait Airways Flight 221, holding multiple passengers including Americans hostage.

In 1985, Hezbollah operatives hijacked TWA Flight 847, during which U.S. Navy diver Robert Stethem was murdered.

In 1996, a truck bomb destroyed the Khobar Towers, killing 19 U.S. Air Force personnel; U.S. authorities later linked the attack to Saudi Hezbollah backed by Iran.

From 2003–2011, IRGC-backed militias in Iraq used EFP roadside bombs and other attacks that killed and wounded hundreds of U.S. troops.

In 2011, U.S. authorities disrupted an alleged IRGC-directed plot to assassinate the Saudi ambassador in Washington, which could have caused American civilian casualties.

In 2007, IRGC-backed militants carried out the Karbala provincial headquarters attack, killing five U.S. soldiers.

In the 2010s–2020s, IRGC-backed groups have been linked to attempted or foiled plots against U.S. individuals abroad, including dissidents and officials.

In 2019, IRGC-backed militias attacked the U.S. Embassy compound in Baghdad.

From 2019–present, IRGC-backed groups have conducted repeated rocket and drone attacks on U.S. bases in Iraq and Syria.

In 2024, IRGC-backed militants carried out the Tower 22 drone attack, killing three U.S. service members.