Conscription, often called the draft, is a system by which a government requires citizens to perform military service. A person required to serve is typically called a conscript. Conscription can apply to enlistment in the army or other armed services and to becoming a soldier, sailor or airperson. Systems vary widely: some states maintain universal, mandatory service for all eligible citizens, while others use selective or conditional drafts that apply only in wartime or to specific cohorts.

Who is conscripted and common exemptions

Historically, men in late adolescence and early adulthood have been the main target of conscription, but some countries extend service to women or allow voluntary female enlistment. Notable examples of national policies including women are Israel, Norway and Sweden. Many systems include exemptions or deferrals for factors such as serious medical conditions, sole family caregivers, key industrial roles, or enrollment in higher education. Conscientious objection — refusal to serve for moral, religious or philosophical reasons — is recognized in many countries, typically with alternative civilian service options.

Conscription may be compulsory by law or activated only during emergencies. It can be universal, applying to all eligible people, or selective, choosing individuals by lottery, lottery-like rankings, or targeted criteria. Lengths of service vary from a few months to several years depending on national needs and the type of military training provided. The legal underpinning of a draft normally specifies eligibility, appeal procedures, penalties for evasion and provisions for deferment.

Historical development

Modern mass conscription developed in the late 18th and early 19th centuries. The French levée en masse after the French Revolution is often cited as the first large, organized conscript army capable of mobilizing large citizen forces. During the 19th and 20th centuries conscription became the dominant method of mobilizing manpower in Europe and beyond. In the two World Wars even states that had relied on volunteers adopted drafts; for example the United Kingdom introduced compulsory service in the First World War and the British Army made heavy use of conscripts. Outside Europe, countries such as New Zealand also instituted conscription during major conflicts when volunteer recruitment fell short.

Uses, benefits and criticisms

Proponents argue conscription ensures a steady supply of trained personnel, spreads the burden of national defense broadly across society, and can foster civic skills, discipline and social mixing. Critics describe conscription as an infringement on individual liberty, potentially disruptive to education and careers, and sometimes inefficient compared with professional volunteer forces. Practical issues include the economic cost of training and maintaining conscripts, the challenge of integrating conscripts into modern complex militaries, and civilian-military relations in societies where service is mandatory.

Variations and notable features

  • Types of service: combat roles, non-combat military roles and alternative civilian service for conscientious objectors.
  • Selection methods: universal registration, lottery systems, or age- and skill-based selection.
  • Deferrals and exemptions: students, essential workers, medical unfitness, family care responsibilities.
  • Gender policies: some countries conscript only men; others include women or maintain volunteer professional forces.

Contemporary practice ranges from countries with large standing conscript systems to states that have abolished the draft in favor of all-volunteer forces. Debates over reinstating, reforming or abolishing conscription remain part of public policy in many nations, balancing defence needs, civic values and individual rights.

For further background and national details see resources and country pages via links: military forces, soldier roles, Israel conscription, Norway policy, Sweden policy, education deferments, French Revolution origins, United Kingdom history, world wars, British Army conscription and New Zealand 1916.