Final answer:
The internment of Japanese Americans occurred during World War II due to the fear of their potential loyalty to Japan.
Step-by-step explanation:
The internment of Japanese Americans took place during World War II. After the bombing of Pearl Harbor in 1941, there was a fear that Japanese Americans might be loyal to Japan and pose a threat to the United States. As a result, President Roosevelt signed Executive Order 9066, which authorized the removal and internment of over 110,000 Japanese and Japanese-descended individuals in prison camps. These individuals lost their homes and jobs, and their internment was based on race prejudice and war hysteria.