Before the 9/11 terrorist attacks, Steven Backman, a resident of St. Stephen, N.B. Could cross the Canada-U.S. Border with a simple wave. Now, frequent trips to Calais, Maine, involve more rigorous customs checks. The 9/11 attacks prompted a significant shift in Canada’s national security policies, increasing border surveillance and security measures. This change reflects a broader trend in how Canada approaches threats from the United States.

The heightened security has affected daily routines for many border communities. What was once a seamless process now requires more documentation and scrutiny. These changes highlight the lasting impact of 9/11 on international relations and domestic policy. The U.S. Has also seen similar shifts, with increased border control and security protocols.

Canada’s response to U.S. Trade policies, including tariffs and border closures, has further complicated bilateral relations. The country continues to navigate the balance between security and economic cooperation. As both nations adjust to evolving threats, the legacy of 9/11 remains a key factor in shaping their policies.