Photo gallery: A look at recent Three Amigos summits

As Barack Obama, Enrique Peña Nieto and Justin Trudeau prepare to meet, a look back at past North American leaders’ summits

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U.S. President George W. Bush (R), Mexican President Vicente Fox (C) and Canadian Prime Minister Stephen Harper participate in a tour of the Chichen-Itza archaeological ruins in Mexico March 30, 2006. The trio have gathered to take part in a three-way summit of North American leaders. (Jason Reed/Reuters)

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