Opinion | How September 11 unleashed a chain of events that changed the world and America’s place in it

Smoke waves from the twin towers of the World Trade Center in New York City on September 11, 2001.

Before the September 11 attacks, the United States was an undisputed superpower. Then came the invasion of Afghanistan, the Iraq war, and other events that brought America down and let other powers rise.

Michael Petrou is the editor-in-chief of Open Canada, an online magazine about Canada’s place in the world.


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