Japanese forces capture Shanghai after intense fighting, marking their expansion into China and signaling the increasing tensions in the region.
Japan launches a surprise attack on the U.S. naval base at Pearl Harbor, leading to the United States entering World War II.
Following the attack on Pearl Harbor, Japan extends its occupation in Shanghai, impacting foreign residents including Western civilians and families.
Western civilians in Japanese-occupied territories including Shanghai are interned in camps such as Lunghua, facing harsh conditions during the war.