The Alaska Highway, or Alcan Highway, was a crucial military project initiated during World War II to connect the contiguous United States with Alaska, which was essential for defense and supply lines. The construction commenced in March 1942, propelled by the need for a secure route after the Japanese attack on Pearl Harbor highlighted vulnerabilities in North America's defense. Building over rugged and often inhospitable terrain posed significant challenges, including severe weather, mountainous landscapes, and logistical difficulties in transporting materials and personnel.

The highway stretches approximately 1,390 miles, starting from Dawson Creek, British Columbia, and ending in Delta Junction, Alaska. Thousands of workers, including American soldiers, Canadian civilians, and Indigenous peoples, collectively undertook this monumental task, often working under grueling conditions. Despite the completion of the road in November 1942, it remained impractical for standard vehicles due to ongoing construction efforts and maintenance. Full usability for civilian travel was only achieved by 1943, after further improvements had been made.

In celebration of this achievement, the completion was marked with various ceremonies, showcasing the collaboration between the United States and Canada during a critical period in history. This operational roadway came to symbolize both strategic military considerations and the cooperative spirit necessary to accomplish such a daunting task amid war, which laid the foundation for better infrastructure in the region.