Japan bombed Pearl Harbor in Hawaii on December 7 1941, “a date which will live in infamy,” according to Franklin Roosevelt, the president of the United States. i still don't get what Japan was thinking. The United States declared War on Japan and Canada joined in. Soon everyone of Japanese descent living along the coast of British Columbia became an enemy alien, whether they were Japanese Nationals, Naturalized citizens or Canadian born. My baachan’s family dry cleaning business was sold off.