This memorial honors 320 individuals (including 200 young African American men) who were killed in a munitions accident during World War II while loading munitions and bombs onto ships bound for the Pacific Rim. Following the explosion many of the enlisted men refused to work, resulting in the Navy’s largest mutiny trial and eventually helping to push the US Armed Forces to desegregate. The memorial is located on an active military base and as a result ”’reservations must be made at least two weeks in advance”’ and ”’all visitors must be US citizens or permanent residents”’. All visitors are shuttled to the memorial from John Muir National Historic Site in nearby Martinez.