Venezuela ? A gathering of anti-globalization activists ended with Venezuelan leader Hugo Chavez warning that an American attack on Iran would be “10 times worse than Iraq” and saying: “Down with the U.S. empire!”

A series of fiery speeches totaling seven hours by Chavez on Sunday closed the six-day World Social Forum, and he used the event for some of his strongest comments aimed at Washington.

“Enough already with the imperialist aggression!” Chavez said, listing countries from Panama to Iraq where the U.S. military has intervened. “Down with the U.S. empire! It must be said, in the entire world: Down with the empire!”

The anti-globalization meeting is held each year to counter the World Economic Forum in Davos, Switzerland.