Although numerous accounts have been published of the genesis and character of the attempted October 1965 coup in Indonesia, many important aspects of that affair still remain very unclear. The fact that in most accounts so much of the picture has been painted in black and white, and in language of categorical certainty, has served only to paper over the enormous gaps in established knowledge of the event.

In his present introduction to the paper here published, Professor Anderson describes the circumstances surrounding its preparation and the reasons why it was not previously published....