After the surprise attack on Pearl Harbor plunged the nation into the second world war, about 120,000 people of Japanese heritage who lived on the West Coast were sent to internment camps. people were held — such as Manzanar in. Manzanar is remembered today for a third forced relocation. happened — the 120,000 American citizens rounded up and shipped to 10 “relocation” camps during World War II — and to…