The Indonesia–Malaysia confrontation began in early 1963 following Indonesia's opposition to the creation of Malaysia. Initial Indonesian attacks into East Malaysia relied heavily on local volunteers trained by the Indonesian Army. With the passage of time infiltration forces became more organised with the inclusion of a larger component of Indonesian forces. To deter and disrupt Indonesia's growing campaign of infiltrations, the British responded in 1964 by launching their own covert operations into Indonesian Kalimantan under the code name Operation Claret. Coinciding with Sukarno announcing a 'year of dangerous living' and the 1964 race riots in Singapore, Indonesia launched an expanded campaign of operations into West Malaysia on 17 August 1964, albeit without military success. A build