Abstract
This study examines the importance of British intelligence and propaganda in the Confrontation with Indonesia. It shows that Britain had access to human and signals intelligence on Indonesia, which influenced British policy and strategy in several ways. In particular, signals intelligence gave London the confidence to launch 'Claret' cross border raids against Indonesia from 1965. The study also reveals that Britain mounted an aggressive propaganda campaign against Indonesia during the Confrontation and especially after an abortive coup attempt in 1965. British propaganda successfully encouraged the army to destroy the Indonesian communist party, remove President Sukarno from power and end the Confrontation.