The Early Years. Manzo Nagano, the first known immigrant from Japan, arrived in Canada in Like other minorities, Japanese Canadians since that time struggled against prejudice and won a respected place in the Canadian mosaic through hard work and perseverance. Most of the issei (first generation or. 26 Sep Following the Pearl Harbor attack, the Government of Canada used the War Measures Act to order the removal of all Japanese Canadians residing within kilometres of the Pacific coast. More than 20, Japanese people were placed in internment camps and relocation centres in the interior of. Japanese Canadian Internment was when the Canadian government removed all of the Japanese Canadians from the British Columbia coast following the Japanese invasion of Hong Kong, invasion of Malaya, attack on Pearl Harbor, and the subsequent Canadian declaration of war on Japan during World War II.