The Singapore Army is the land service branch of the Singapore Armed Forces (SAF). The largest of the four branches of the SAF, the Singapore Army traces its origins to the 1st Battalion, Singapore Infantry Regiment (1 SIR), which was formed in 1957, when Singapore was still under British colonial rule. After Singapore's independence on 9 August 1965, the Singapore Army Bill was passed in Parliament on 23 December 1965, and National Service (NS) was subsequently introduced in 1967. Mostly made up of conscripts, the Singapore Army can mobilise all operationally-ready military reservists in the event of war or national exigencies. Mission The mission of the Singapore Armed Forces (SAF) is to deter armed aggression, and to secure a swift and decisive victory should deterrence fail. The Army is also tasked with conducting peace-time operations to further Singapore's national interests and foreign policy. These range from disaster relief to peacekeeping, hostage rescue and other contingencies. The Army views technology as a force-multiplier and a means to sustain combat power given Singapore's population constraints. Jointness across four branches of the SAF is integral to the Army's warfighting doctrine. Joint operations undertaken with the Navy and Air Force include amphibious landings and critical disaster relief operations in the aftermath of the 2004 Indian Ocean earthquake and tsunami. The Army has a technically proficient, relatively well-educated draftee pool and officer corps (non-commissioned and commissioned) reflective of the population at large, and has sought to leverage this to ease its transition into a more sophisticated, networked fighting force. Combat readiness is a linchpin of Army policy, and military exercises up to divisional level are conducted many times yearly, simulating full-spectrum operations, up to and including full-scale war. Divisional war games are a combined arms, tri-service affair involving the Navy and Air Force. Because training space is limited in Singapore—artillery fire would quickly traverse the island—some military exercises are conducted overseas. Reservists periodically train abroad, their units regularly evaluated for combat readiness. The Army also trains bilaterally with some host nations, and military exchanges are frequent. Training is billed as "tough, realistic and safe," with a premium on safety, given the sensitivity of military deaths in a largely conscript army. Following the revolution in military affairs, and in tandem with modernising its weapons systems, the Army is forging a transition to a more network-centric fighting doctrine that better integrates the Air Force and Navy. History