Unification of Germany & Italy

The Risorgimento and the Cavourian Method

The unification of Italy (the Risorgimento) transformed a peninsula that Metternich had dismissed in 1847 as a mere "geographical expression" into a single kingdom by 1871. After the failed revolutions of 1848-49—when Charles Albert of Piedmont-Sardinia was defeated by Austria at Custoza (1848) and Novara (1849), and Mazzini's Roman Republic was crushed by French troops—the initiative passed from romantic republicanism to the calculated realpolitik of Count Camillo di Cavour, prime minister of Piedmont-Sardinia from 1852.

Cavour pursued unification through diplomacy and selective war rather than insurrection. He modernised Piedmont's economy and railways, then internationalised the Italian question by committing Piedmontese troops to the Crimean War (1855), earning a seat at the Congress of Paris (1856). At the secret Pact of Plombières (July 1858) he secured Napoleon III's promise of French military aid against Austria in exchange for Nice and Savoy. The Second Italian War of Independence (1859) followed: Franco-Piedmontese victories at Magenta and Solferino delivered Lombardy, though Napoleon III's unilateral Armistice of Villafranca (July 1859) left Venetia with Austria. Plebiscites in 1860 added Tuscany, Parma, Modena and the Romagna.

Garibaldi, Rome and Venetia

The decisive popular thrust came from Giuseppe Garibaldi, whose Expedition of the Thousand (the Mille) sailed from Genoa in May 1860, toppled the Bourbon Kingdom of the Two Sicilies, and crossed to the mainland. Cavour, fearing Garibaldi would march on Rome and provoke France, sent Piedmontese forces south; the two leaders met at Teano (October 1860), where Garibaldi hailed Victor Emmanuel II as king. The Kingdom of Italy was proclaimed on 17 March 1861 with Turin as capital and Victor Emmanuel II as sovereign—Cavour died three months later.

Two prizes remained outside. Venetia was annexed in 1866 after Italy allied with Prussia in the Austro-Prussian War and gained it via the Treaty of Vienna despite military defeats at Custoza and Lissa. Rome, garrisoned by French troops protecting Pope Pius IX, fell only when the Franco-Prussian War forced France to withdraw; Italian troops breached the walls at Porta Pia on 20 September 1870. Rome became the capital in 1871, and the Law of Guarantees (1871) regulated the Papacy's status—though Pius IX, in the "Roman Question," refused to recognise the new state, a rupture unresolved until the Lateran Treaty of 1929.

The Italian model fused three strands of nationalism the exams routinely contrast: Mazzini's idealist republicanism (Young Italy, 1831), Cavour's monarchist diplomacy, and Garibaldi's armed populism. Cavour's instruments—economic reform, foreign alliance, managed war and plebiscite—established a template that Bismarck would soon refine and surpass.

Bismarck and Unification by Blood and Iron

German unification followed a parallel logic but under Prussian, conservative, and militarist auspices. The failure of the 1848 Frankfurt Parliament—which offered the imperial crown to Frederick William IV of Prussia in 1849, only for him to spurn a "crown from the gutter"—discredited liberal, parliamentary unification (the kleindeutsch solution). The Zollverein customs union, operating since 1834 and excluding Austria, had already bound the German states to Prussia economically. After 1862 the decisive agent was Otto von Bismarck, minister-president of Prussia, who told the Budget Commission on 30 September 1862 that the great questions of the day would be settled "not by speeches and majority votes... but by blood and iron."

Bismarck achieved unification through three calculated wars. First, the Schleswig-Holstein affair produced the Second Schleswig War (1864), in which Prussia and Austria jointly defeated Denmark; the Convention of Gastein (1865) split administration of the duchies and seeded a quarrel with Austria. Second, the Austro-Prussian (Seven Weeks') War of 1866, decided at the Battle of Königgrätz (Sadowa) on 3 July 1866, expelled Austria from German affairs. The Peace of Prague (1866) dissolved the German Confederation and enabled the North German Confederation (1867) under Prussian leadership.

The Ems Telegram and the Second Reich

The final act used France as catalyst. The candidacy of a Hohenzollern prince for the Spanish throne triggered a crisis Bismarck sharpened by editing the Ems Telegram (13 July 1870) to insult French sensibilities, provoking France to declare war. The Franco-Prussian War (1870-71) ended in the catastrophic French defeat at Sedan (1 September 1870), the capture of Napoleon III, and the siege of Paris. The southern German states joined the war on Prussia's side. On 18 January 1871, in the Hall of Mirrors at Versailles, William I of Prussia was proclaimed German Emperor, founding the Second Reich. The Treaty of Frankfurt (10 May 1871) transferred Alsace and most of Lorraine to Germany and imposed a five-billion-franc indemnity—an annexation that poisoned Franco-German relations and supplied a grievance feeding into the First World War.

Comparative Verdict

The two unifications invite the comparison examiners prize. Both were achieved by a single dynamic state (Piedmont, Prussia), a master statesman (Cavour, Bismarck), and the harnessing of war and diplomacy over liberal idealism. Yet Germany emerged as a powerful, militarised, semi-authoritarian empire whose 1871 constitution preserved Prussian dominance and royal control of the army, whereas Italy remained economically backward, regionally divided between an industrialising north and an agrarian south, and burdened by the Roman Question. Both states upset the balance of power codified at the Congress of Vienna (1815), accelerating the alliance systems that culminated in 1914.

Why This Matters for the Exam

The unifications of Germany and Italy are foundational across the shared world-history layer because they explain the make-up of the European states system on the eve of the World Wars—the single most examined causal chain in modern history papers.

UPSC GS-1. The syllabus explicitly lists "history of the world... forms of state" and nationalism. Italian and German unification are classic vehicles for a question on 19th-century European nationalism, often paired with a comparison or with the legacy of the Congress of Vienna (1815). A PYQ-style prompt—"The forces of nationalism... in 19th-century Europe"—rewards candidates who contrast Mazzini, Cavour and Garibaldi and who connect 1871 to the origins of 1914. Optional History (Paper 2) demands the granular chronology: Plombières (1858), the Mille (1860), Königgrätz (1866), Sedan (1870).

FSOT. The Job Knowledge Test draws on Western civilisation and the diplomatic history of the balance of power. Know Bismarck's alliance architecture (the Three Emperors' League 1873, Dual Alliance 1879) as the sequel to 1871, and the strategic meaning of the Alsace-Lorraine annexation.

CSS / BCS. General Knowledge and European History papers test dates, treaties and personalities directly: the proclamation at Versailles (18 January 1871), the Treaty of Frankfurt (1871), and the "blood and iron" speech are frequent objective items.

High-Yield Facts to Retain

Memorise the dated spine: 1834 Zollverein; 1848-49 failed revolutions and Frankfurt Parliament; 1858 Plombières; 1859 Magenta and Solferino; 1860 Expedition of the Thousand and Teano; 17 March 1861 Kingdom of Italy; 1862 "blood and iron"; 1864 Second Schleswig War; 3 July 1866 Königgrätz; 1867 North German Confederation; 13 July 1870 Ems Telegram; 1 September 1870 Sedan; 20 September 1870 Porta Pia; 18 January 1871 German Empire proclaimed; 10 May 1871 Treaty of Frankfurt; 1929 Lateran Treaty resolving the Roman Question.

Retain the analytical contrasts examiners reward: realpolitik versus liberal idealism; kleindeutsch (without Austria) versus grossdeutsch (with Austria); the divergent outcomes—authoritarian, militarised Germany versus weak, regionally split Italy. Frame every answer around the central thesis: unification by the strongest dynastic state, engineered by a conservative statesman who subordinated nationalism to state power, overturning the 1815 settlement and setting the trajectory toward 1914.