The Alabama Claims arbitration denotes the landmark international dispute settlement conducted at Geneva between 1871 and 1872 under the Treaty of Washington (8 May 1871), by which the United States and Great Britain submitted to arbitration American claims for losses inflicted by Confederate commerce raiders—chiefly the CSS Alabama, but also the Florida and Shenandoah—that had been constructed, armed, or fitted out in British ports despite Britain's declared neutrality in the American Civil War. The dispute crystallised the legal duties of a neutral state toward a belligerent, and its peaceful resolution is regarded as a foundational precedent for modern international arbitration. The Treaty of Washington itself codified, in its Article VI, the celebrated three rules of Washington, against which the tribunal was directed to measure British conduct.
The tribunal sat at Geneva and comprised five arbitrators nominated respectively by the United States, Great Britain, and the neutral heads of state of Italy, Switzerland, and Brazil—Charles Francis Adams, Sir Alexander Cockburn, Count Federico Sclopis (who presided), Jakob Stämpfli, and Marcos Antônio de Araújo (Viscount d'Itajubá). The three rules of Washington required that a neutral government use "due diligence" to prevent the fitting out or arming within its jurisdiction of any vessel it had reasonable ground to believe was intended to cruise against a power with which it was at peace, to prevent such vessels from departing, and to prevent the use of its ports as a base of naval operations. On 14 September 1872 the tribunal, by a majority of four to one (Cockburn dissenting), held that Britain had failed to exercise due diligence and awarded the United States US$15,500,000 in gold as compensation, which Britain duly paid—an extraordinary instance of a great power submitting to and honouring an adverse arbitral award.
The award's significance lies less in the sum than in its vindication of arbitration as a substitute for war between great powers and its concrete articulation of neutral duties later absorbed into Hague Convention XIII of 1907 on neutrality in naval war. It also defused a serious Anglo-American rupture and is cited as the precursor to the Permanent Court of Arbitration (1899) and the broader institutionalisation of pacific settlement under Article 33 of the UN Charter. The episode established that even sovereigns could be held to objective standards of "due diligence," a concept that persists in contemporary state-responsibility doctrine and the work of the International Law Commission.
For the exam, the Alabama Claims feature prominently in International Law and International Relations papers, where the standard angle tests the three rules of Washington, the meaning of neutral "due diligence," and the arbitration's status as a milestone in the historical development of arbitration and pacific settlement of disputes. Candidates should be able to name the Treaty of Washington (1871), the 1872 award figure and majority, the presiding arbitrator Sclopis, and link the case forward to the Hague Conventions and the PCA. Comparative questions may juxtapose it with later landmark arbitrations and with Article 33 UN Charter mechanisms.
Example
In its award of 14 September 1872, the Geneva tribunal ordered Great Britain to pay the United States US$15.5 million in gold for damage caused by the British-built Confederate raider CSS Alabama.
Frequently asked questions
Embodied in Article VI of the Treaty of Washington (1871), they required a neutral state to exercise due diligence to prevent the fitting out or arming of warships intended against a friendly power, to prevent their departure, and to deny its ports as a base of naval operations.