National Service (NS) is one of Singapore’s foundational national defence policies. First introduced by the British in 1954, amended in 1967 to provide a means to defend a fledgling independent nation, and codified into its present form in 1970, NS is deeply woven into Singapore’s political and social fabric. The 50th anniversary of the enlistment of the first batch of full-time National Servicemen is an opportune time to contemplate the past, present and future of NS. This volume brings together a range of perspectives on NS in Singapore. It covers three main areas: the history of NS, NS in practice, and international perspectives. Comprising chapters by individuals with varied backgrounds, National Service in Singapore hopes to offer a broad account of one of Singapore’s fundamental public policies.