Established in December 1945 under the name "Club 100," by the World War II veterans of the 100th Infantry Battalion. The purpose of this organization is to perpetuate the identity and legacy of the 100th Infantry Battalion; to promote community service, patriotism, and social welfare for the people of Hawai‘i; and to provide a support network for the veterans of the 100th, including those who gave their lives in World War II, and their families.