U.S.-Canada relations: A timeline: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Last updated

Oct. 23, 2026

News •

Trump, seeking to help Maine Sen. Susan Collins, exempts some Canadian imports from his 50% tariffs • Oct. 23, 2026, 5:48 PM ET (AP)

Photos

Infographic map of the United States-Canada border, totaling 5,525 miles or 8,890 kilometers: 1,538 miles with Alaska and 3,987 miles across the contiguous United States.

Canadians protest, 1911-style

Unique relationship

Address to Parliament

Welcoming strangers

United States–Mexico–Canada Agreement

Canadians protest, 2025-style

Signs of the times

See All Images →

Topics

United States Canada international relations India-China relations A History of U.S. Intervention in Latin America and the Caribbean Why Is the U.S. Interested in Greenland?U.S.-Iran Relations: A Timeline India-Russia Relations How Many Times Have Donald Trump and Vladimir Putin Met in Person?diplomacy Today in History—October 28: Castro and Chávez Play Ball war on terrorism Today in History—February 21: Best Souvenir Ever