Parliament of Singapore was allocated 15 out of 127 seats. Under its new State Constitution, Singapore kept its own executive government and legislative assembly. However, with effect from 9 August 1965, Singapore left Malaysia and became a fully independent republic. On separation from Malaysia, the Singapore Government retained its legislative powers, and the Parliament of Malaysia gave up all power to make laws for Singapore. Similarly, the Republic of Singapore Independence Act 1965, passed on 22 December 1965 and made retrospective to 9 August, declared that the legislative powers of the Yang di-Pertuan Agong (Supreme Head of the Federation) and Parliament of Malaysia
Combat operations in 1965 during the Indonesia–Malaysia confrontation Combat operations in 1965 during the Indonesia–Malaysia confrontation The Indonesia–Malaysia confrontation began in early 1963 following Indonesia's opposition to the creation of Malaysia. In December 1964, a build-up of Indonesian forces on the Kalimantan border saw the British government commit significant forces from the UK-based Army Strategic Command and Australia and New Zealand deployed roulement combat forces from West Malaysia to Borneo in 1965–66. In January 1965, the first UK-based units (aside from air defence and special forces) arrived and after six weeks of jungle training, deployed on operations. The 1st Battalion Gordon Highlanders arrived first and became the thirteenth