OCR Specification focus:
‘The impact of foreign affairs on Britain and in the emergence of the Liberal party including 1848, Don Pacifico, the Crimean War, the Italian Wars of Unification.’
Between 1848 and 1860, Britain’s engagement in foreign affairs shaped domestic politics and encouraged the emergence of the Liberal Party, redefining political priorities and ideological alignments.
The European Revolutions of 1848
The revolutions of 1848 across Europe had a profound effect on British politics. Although Britain avoided revolution, the events highlighted the fragility of monarchical power abroad and tested Britain’s commitment to constitutional stability.
The revolutions demonstrated widespread demands for liberal constitutions, national self-determination, and civil liberties.

Map of Europe during the Revolutions of 1848–49, highlighting revolutionary centres, abdications, and counter-revolutionary troop movements. It provides a clear context for Britain’s political response. Source
Britain’s avoidance of upheaval reinforced perceptions of its political maturity and provided a contrast to continental instability.
Politicians such as Lord Palmerston, then Foreign Secretary, used these events to promote Britain as a model of balanced constitutional governance.
National Self-Determination: The principle that nations have the right to form independent states and govern themselves, free from foreign domination.
The 1848 context allowed political leaders to associate the Whigs and emerging Liberals with the defence of liberty and constitutionalism, helping to sharpen their ideological identity.
The Don Pacifico Affair (1850)
The Don Pacifico Affair of 1850 was a defining moment in Palmerston’s foreign policy and in the political debate over Britain’s role abroad.
Don Pacifico, a British subject living in Greece, suffered the destruction of his property. When the Greek authorities failed to offer compensation, Palmerston ordered a naval blockade of Greek ports.
Palmerston justified his actions with the principle that any British citizen, anywhere in the world, should enjoy the protection of Britain.
This affair sparked fierce debate in Parliament. Critics saw it as reckless and arrogant, risking unnecessary conflict with European powers, while supporters celebrated Palmerston’s robust defence of British honour.
The famous ‘Civis Romanus sum’ speech, where Palmerston compared the protection of a British citizen to the ancient Roman guarantee of security, made a deep impression on public opinion. It enhanced his reputation and tied the Liberal cause to national pride and moral authority in foreign affairs.
The Crimean War (1853–1856)
The Crimean War, fought by Britain and its allies against Russia, was a major turning point for domestic politics and Liberal ideology.
Causes and Conduct
The war stemmed from disputes over the decline of the Ottoman Empire and Russian expansionism.
Britain entered the conflict to preserve the balance of power in Europe and protect Mediterranean trade routes.

Theatre map of the Crimean War (1854–55) highlighting the Crimea and operational centres such as Sevastopol and Balaclava. It clarifies Britain’s strategic aims in preserving the European balance of power. Source
The war revealed poor organisation in the army and government, exposing weaknesses in administration.
Political and Social Impact
The war damaged the reputation of existing governments and intensified calls for administrative competence, a key principle later associated with Gladstonian Liberalism.
Public anger over mismanagement, especially the conditions of soldiers, contributed to demands for reforms.
The war’s conclusion did not deliver decisive gains, raising questions about the purpose and cost of intervention.
Balance of Power: A system in international relations in which major states maintain equilibrium to prevent any single power from becoming dominant.
The war reinforced the perception that a more coherent, reform-minded party was needed, laying groundwork for the Liberal Party’s emergence.
The Italian Wars of Unification (1859–1861)
The Italian struggle for unification further linked Britain’s domestic politics with European affairs.
Britain did not intervene militarily but expressed sympathy for Italian nationalism.

Colour map of the Italian peninsula showing stages of unification from 1815 to 1870. It highlights the 1859–61 acquisitions that resonated strongly with British Liberal sympathy, while also including later territorial additions. Source
Liberals, particularly Radicals and Gladstone, celebrated Italy’s move towards constitutional government and liberation from foreign rule.
Gladstone’s earlier writings on the Neapolitan prisons (1851) illustrated his moral commitment to liberty abroad, connecting Liberalism with the broader European liberal-nationalist cause.
These events deepened the ideological commitment of Liberals to the promotion of freedom and constitutionalism internationally, aligning foreign sympathy with domestic principles.
Foreign Affairs as a Catalyst for Liberal Emergence
Foreign policy controversies between 1848 and 1860 directly influenced the emergence of the Liberal Party from a loose coalition of Whigs, Radicals, and Peelites.
Key Catalysts
The 1848 revolutions provided ideological clarity, contrasting Britain’s stability with continental turbulence.
The Don Pacifico Affair highlighted Palmerston’s popularity and his appeal to public opinion, reinforcing a Liberal reputation for bold leadership.
The Crimean War exposed government inefficiencies and promoted administrative reform, which became a cornerstone of Liberal ideology.
The Italian Unification struggle gave Liberals a moral cause, binding their principles to international liberalism.
Political Consequences
Palmerston’s leadership demonstrated the political advantage of linking foreign policy to public sentiment, a skill he carried into his premiership.
Gladstone’s moral authority on international issues built his standing and reinforced the Liberal Party’s appeal to reformist, middle-class voters.
Foreign policy debates forced factions to cooperate, contributing to the eventual cohesion of the Liberal Party in the 1850s and 1860s.
Legacy of the Period 1848–1860
The interplay of foreign and domestic politics between 1848 and 1860 was instrumental in shaping modern Liberalism.
Britain’s constitutional stability was contrasted with Europe’s revolutions.
Defence of British honour abroad became tied to national pride and political popularity.
The exposure of administrative inefficiency during the Crimean War accelerated reformist agendas.
Support for nationalist movements abroad, especially Italy, reinforced Liberal ideological commitments.
Together, these episodes confirmed that foreign affairs were not peripheral but central to the political realignments that produced the Liberal Party.
FAQ
Britain had already enacted significant reforms in the early nineteenth century, such as the 1832 Reform Act, which reduced political tensions.
Economic stability also helped; while hardship existed, Britain benefited from industrial growth and expanding trade, limiting revolutionary pressures.
Additionally, Britain’s political system allowed for gradual change through Parliament, unlike the more rigid monarchies of Europe.
Palmerston recognised the growing influence of a politically engaged middle class and used dramatic rhetoric to appeal to national pride.
His defence of Don Pacifico tapped into popular notions of Britain as a global power obliged to protect its citizens.
Critics in Parliament attacked his recklessness, but public support outside Westminster strengthened his position, demonstrating the rising importance of extra-parliamentary opinion in foreign policy debates.
The war exposed inadequate supply chains, poor medical support, and outdated military organisation.
Key lessons included:
The need for professionalised military administration.
Improved medical care, with figures like Florence Nightingale pushing reforms.
Greater emphasis on accountability of ministers and departments.
These lessons influenced later demands for efficiency and competency, which became central to Liberal thinking.
British Liberals admired the Italian cause because it aligned with ideals of liberty, nationalism, and constitutional government.
Gladstone’s writings on Neapolitan prison abuses personalised the struggle, framing it as a moral issue.
Moreover, British commercial interests saw a unified Italy as a potential partner in trade and a stabilising force in the Mediterranean, reducing Austrian and French dominance.
Foreign controversies created common ground:
Whigs valued constitutional stability amidst European revolutions.
Peelites admired administrative reform, highlighted by the Crimean War.
Radicals supported causes of national self-determination like Italy’s unification.
Together, these shared responses to foreign affairs encouraged cross-faction collaboration, which gradually solidified into the Liberal Party.
Practice Questions
Question 1 (2 marks)
In which year did the Don Pacifico Affair take place, and who was the British Foreign Secretary responsible?
Mark Scheme:
1 mark for correctly identifying the year as 1850.
1 mark for correctly identifying the Foreign Secretary as Lord Palmerston.
Question 2 (6 marks)
Explain how the Crimean War (1853–1856) contributed to the emergence of the Liberal Party.
Mark Scheme:
1–2 marks: Limited explanation with simple reference to the war, e.g. “The Crimean War damaged governments and made people want change.”
3–4 marks: Some developed explanation, showing links between the war and political consequences, e.g. “The Crimean War exposed inefficiency in government and the army, which encouraged calls for reform.”
5–6 marks: Clear, well-supported explanation, directly linking the war to Liberal Party emergence, e.g. “The Crimean War exposed serious failures in administration and military organisation, which discredited existing governments. This created momentum for reform and administrative competence, later becoming a hallmark of Liberal ideology and helping to unify Whigs, Radicals and Peelites into a coherent Liberal Party.”