World War I & Russian Revolution

Overview

World War I (1914–1918) was the first truly global conflict — over 16 million died (roughly 10 million military and 7 million civilian), more than 20 million were wounded, and four empires collapsed: the Ottoman, Austro-Hungarian, Russian, and German. The war directly caused the Russian Revolution (1917), which established the world's first communist state and shaped the ideological conflicts of the 20th century. Together, these events redrew the political map of Europe, the Middle East, and Asia.

World War I (1914–1918)

Causes (MAIN Acronym)

The Two Sides

Key Events

New Technologies of WWI

Treaty of Versailles (28 June 1919)

Key Mains Point: "Did the Treaty of Versailles make WWII inevitable?" A balanced answer: Versailles created necessary conditions (resentment, economic ruin in Germany) but not sufficient ones — the Great Depression (1929), failure of the League of Nations, appeasement policy, and the specific rise of Hitler were equally critical. Avoid one-dimensional "Versailles caused WWII" arguments.

Other Post-WWI Treaties

Impact of WWI on India

The Russian Revolution (1917)

Background

The Two Revolutions

Common Mistake: The February and October Revolutions are named using the Julian Calendar (which Russia used until February 1918). By the Gregorian Calendar: February Revolution = March 1917; October Revolution = November 1917. UPSC may test either dating system.

Lenin's Key Actions

February vs October Revolution — Comparison

Significance of the Russian Revolution

Timeline of Key Events

UPSC Relevance

Prelims Focus Areas

• WWI: 1914–1918; MAIN causes; assassination of Franz Ferdinand (28 June 1914)
• Triple Alliance vs Triple Entente
• Lusitania sinking: 7 May 1915; Zimmermann Telegram: January 1917
• Treaty of Versailles: 28 June 1919; Article 231 (War Guilt); 132 billion gold marks reparations
• Big Four: Wilson, Lloyd George, Clemenceau, Orlando; Wilson's 14 Points (8 Jan 1918)
• League of Nations: USA did not join; Mandate System
• Indian soldiers in WWI: 1.3 million served; ~74,000 killed
• February Revolution: March 1917 (Gregorian); Tsar abdicated
• October Revolution: November 1917 (Gregorian); Bolsheviks; Lenin
• April Theses: "Peace, Bread, Land"; Cheka: December 1917
• Treaty of Brest-Litovsk: March 1918; Russia left WWI
• War Communism vs NEP; 1921 famine
• USSR formed: 30 December 1922
• M.N. Roy: CPI at Tashkent (1920); 2nd Comintern Congress
• Armistice: 11 November 1918

Mains Focus Areas

• Did the Treaty of Versailles make WWII inevitable? Discuss
• Compare the causes of the French and Russian Revolutions
• How did WWI change the global balance of power?
• Assess the significance of the Russian Revolution for the 20th century
• Impact of the Russian Revolution on the Indian freedom movement
• Was the Bolshevik Revolution a genuine workers' revolution or a coup?
• Compare War Communism and the New Economic Policy
• How did Indian participation in WWI shape the demand for self-rule?

Vocabulary

Trench

• Pronunciation: /trɛntʃ/
• Definition: A long, narrow excavation dug in the ground by troops as a defensive position from which to fire upon the enemy — trench warfare became the defining feature of the Western Front in World War I.
• Origin: From Old French trenche ("a cut, a slash"), from trenchier ("to cut"), from Latin truncāre ("to cut off, maim"); the term "trench warfare" first appeared in the 1880s and became widely used from 1914.

Armistice

• Pronunciation: /ˈɑːmɪstɪs/
• Definition: A formal agreement between warring parties to cease hostilities, often as a prelude to peace negotiations — the Armistice of 11 November 1918 ended fighting on the Western Front of World War I.
• Origin: From Late Latin armistitium, combining Latin arma ("arms, weapons") + sistere ("to cause to stand, to stop"); entered English in the late 1600s.

Bolshevik

• Pronunciation: /ˈbɒlʃəvɪk/
• Definition: A member of the radical wing of the Russian Social Democratic Labour Party, led by Vladimir Lenin, which seized power in the October Revolution of 1917 and established the world's first communist state.
• Origin: From Russian bol'shevik (большевик), derived from bol'she ("greater, larger"), because the faction won a majority on key votes at the party's Second Congress in 1903; contrasted with Menshevik ("minority").

Key Terms

Treaty of Versailles

• Pronunciation: /ˈtriːti əv vɛəˈsaɪ/
• Definition: The peace treaty signed on 28 June 1919 at the Palace of Versailles that formally ended World War I — it imposed the War Guilt Clause (Article 231), 132 billion gold marks in reparations, severe territorial losses (including Alsace-Lorraine), and military restrictions on Germany, while establishing the League of Nations.
• Context: Signed in the Hall of Mirrors at Versailles — the same room where the German Empire was proclaimed in 1871; the treaty's harsh terms generated deep German resentment that Hitler exploited to rise to power, making Versailles a direct cause of World War II.
• UPSC Relevance: GS1 (World History). Prelims: tested on date (28 June 1919), key clauses (War Guilt/Article 231, reparations, territorial losses, military restrictions), and the League of Nations establishment. Mains: asked to assess how the Treaty of Versailles sowed the seeds of WWII, and whether it was "a peace built on quicksand." Focus on the causal chain: Versailles → German humiliation → rise of Hitler → WWII; also relevant for questions on international organisations (League of Nations vs UN).

October Revolution

• Pronunciation: /ɒkˈtoʊbə ˌrɛvəˈluːʃən/
• Definition: The Bolshevik seizure of power on 7 November 1917 (25 October in the Julian Calendar), when Lenin's forces, organised by Trotsky through the Military Revolutionary Committee, captured the Winter Palace in Petrograd and overthrew the Provisional Government, establishing Soviet rule.
• Context: Named "October Revolution" after its date in the Julian Calendar (Russia switched to the Gregorian calendar in February 1918); the revolution established the world's first communist state, profoundly influencing Indian revolutionary movements (HSRA, CPI) and global anti-colonial struggles.
• UPSC Relevance: GS1 (World History). Prelims: tested on date (7 November 1917), key figures (Lenin, Trotsky), and distinction from the February Revolution (1917). Mains: asked to assess the Russian Revolution's global impact — on colonialism, workers' movements, and political ideologies. Focus on the revolution's influence on Indian nationalism — it inspired Bhagat Singh, M.N. Roy, and the communist movement in India, and shaped Nehru's socialist thinking and India's Five Year Plans.

Sources: John Keegan — The First World War, Orlando Figes — A People's Tragedy: The Russian Revolution, Britannica Academic, NCERT World History Textbooks