"In 1976 the International Brigade Association celebrated its 40th Anniversary Reunion. In response to this event, the Sound Archive of the Imperial War Museum began an oral history project on the Spanish Civil War (1936-1939). The Spanish Civil War sound collection is largely made up of interviews with British people who served with the International Brigades. There are also recordings of medical aid workers, non-British volunteers, Spanish soldiers and Spanish civilians and refugees. The collection contains very few interviews with soldiers who fought with Franco's forces. Appeals for Nationalist veterans have yet to yield a response."