From 1942 to 1949, Canada forcibly relocated and incarcerated over 22,000 Japanese Canadians—comprising over 90% of the total Japanese Canadian population—from British Columbia in the name of "national security". The majority were Canadian citizens by birth and were targeted based on their ancestry. This decision followed the events of the Japanese Empire's war in the Pacific against the Western Allies, such as the invasion of Hong Kong, the attack on Pearl Harbor in Hawaii, and the Fall of Singapore which led to the Canadian declaration of war on Japan during World War II. Similar to the actions taken against Japanese Americans in neighbouring United States, this forced relocation subjected many Japanese Canadians to government-enforced curfews and interrogations, job and property losses, and forced repatriation to Japan.

Executive Order 9066 was a United States presidential executive order signed and issued during World War II by United States president Franklin D. Roosevelt on February 19, 1942. "This order authorized the forced removal of all persons deemed a threat to national security from the West Coast to "relocation centers" further inland—resulting in the incarceration of Japanese Americans." Two-thirds of the 125,000 people displaced were U.S. citizens.