Definition
A statute prohibiting nationals of one country from enlisting as soldiers or sailors in the military or naval service of a foreign power. In British legal usage, the term refers specifically to the Foreign Enlistment Act, 59 Geo. III, c. 69 (1819), which made it a criminal offense for British subjects to accept commissions, enlist, or otherwise enter into the armed service of any foreign state at war with a state at peace with Great Britain. The Act was a cornerstone of British neutrality law in the early nineteenth century and served as the legislative model for analogous statutes in other common law jurisdictions.
Common Language
Modern common usage (Wiktionary): No standard entry. "Enlistment" in common use means the act of voluntarily joining a military force.
Historical common usage (Webster's 1913): "Enlistment" — the act of enlisting; the state of being enlisted; voluntary enrollment.
The gap between common and legal meaning is one of direction and prohibition. In ordinary usage, enlistment is a voluntary act of joining. The Enlistment Act does not define or regulate domestic enlistment — it criminalizes the act of enlisting in a foreign military. The legal term signals restriction and penalty, not procedure.
Why It Matters in Research
This term has a narrow but historically specific meaning that makes contextual dating essential. Sources before roughly 1870 using "Enlistment Act" without qualification almost certainly mean 59 Geo. III, c. 69. After 1870, the reference may shift to the revised Act, and the legal landscape shifts with it.
American researchers should note that the United States enacted its own neutrality legislation — distinct from the British Enlistment Act — through statutes beginning with the Neutrality Act of 1794. American legal dictionaries and treatises sometimes discuss the British Enlistment Act as a comparator or as the source of international law principles, not as binding domestic law. Conflating British and American neutrality statutes is a common error in historical legal research.
The term also appears in international law literature in connection with state responsibility, the laws of neutrality, and the rights of belligerents. Wharton's works, cited by Bouvier, are a productive secondary source for this context.
Corpus researchers should also note that "enlistment" and "foreign enlistment" appear as distinct search terms in historical legal databases. Searching only for "enlistment act" may miss relevant discussions filed under "foreign enlistment," "neutrality," or references to the specific regnal year citation (59 Geo. III).
Historical Dictionary Support
Bouvier's Law Dictionary identifies the Enlistment Act solely as the statute 59 Geo. III, c. 69, characterizing it as a measure "for preventing British citizens from enlisting as sailors or soldiers in the service of a foreign power." Bouvier cites Wharton's Lexicon and Stephen's Commentaries (4 Steph. Com. 226) as supporting authorities, suggesting the term was well-settled in mid-nineteenth-century Anglo-American legal discourse.
The entry is brief to the point of being purely referential — Bouvier treats the Act as a known quantity requiring identification, not explanation. This reflects how the term functioned in practice: American lawyers and courts encountering questions of neutrality and foreign military service looked to this British statute as the foundational text, often before considering analogous American legislation.
What Bouvier does not address is the Act's subsequent revision. The 1819 statute was substantially amended and replaced by the Foreign Enlistment Act 1870 (33 & 34 Vict., c. 90), which broadened prohibitions to cover the equipping and dispatch of vessels for foreign belligerents — a direct legislative response to controversies arising from the American Civil War, particularly the Alabama Claims. Researchers working in sources from the 1870s onward should be alert to the fact that "Enlistment Act" may refer to either the 1819 or 1870 statute, and the two differ materially in scope.
Jurisdictional Note
The Enlistment Act is a British statute with no direct American equivalent by that name. Its principles were absorbed into American neutrality law by separate legislation. Common law jurisdictions modeled their own foreign enlistment statutes on the British Act, so the term may appear in Canadian, Australian, and other Commonwealth legal sources with analogous but not identical application.