Nisei (?? , lit. second generation) are people, or a person, of Japanese ancestry and the first generation to be born abroad. Their parents who emigrated are known as Issei, or first generation; subsequent generations are known as sansei and yonsei. These terms are in common use in countries such as Brazil, the United States, and Canada, where there are significant communities of Japanese immigrants and their descendants. American Nisei during WWII During WWII, Americans of Japanese ancestry living in the United States, including the Nisei, were forcibly interned with their parents, because the public opinion feared that they would be disloyal in the war against Japan. Note that the much larger Japanese-American community in Hawaii was not interned, and that no acts of sabotage were ever committed by Japanese Americans in any part of the US. Most Japanese Americans who fought in WWII were Nisei. The 100th Infantry Battalion and 442nd R