Fred Korematsu believed in the protection of civil rights and the defense of the Constitution. He was an American civil rights activist who challenged the US government's internment of Japanese Americans during World War II. He believed that the internment of Japanese Americans was a violation of their constitutional rights, and he fought against the policy in court. He took his case to the Supreme Court and lost, but he continued to fight for the rights of Japanese Americans and other minorities throughout his life. He is widely recognized as a symbol of resistance against racial discrimination in the United States.