Key facts and dates

World War One, also known as the Great War, involved massive casualties and global powers, stemming from imperial rivalries and alliances in Europe. It reshaped the world through trench warfare, economic devastation, and post-war treaties that sowed seeds for future conflicts.

Timeline of key events

• 1871 – Germany forms as a unified nation, aspiring to rival Britain's power.
• 1882 – Triple Alliance formed by Germany, Austria-Hungary, and Italy (Ottoman Empire joins in 1914; Italy switches sides in 1915).
• 1907 – Triple Entente established by France, Russia, and Britain (Russia withdraws in 1917; USA joins around the same time).
• 28 June 1914 – Assassination of Archduke Franz Ferdinand in Sarajevo sparks the war.
• July-August 1914 – Chain of declarations: Austria attacks Serbia, leading to wars involving Russia, Germany, France, Britain, and others.
• 1916 – Battle of the Somme results in over a million casualties.
• 11 November 1918 – Armistice signed, ending the fighting.
• 1919 – Treaty of Versailles signed, blaming Germany and imposing harsh terms.

Background to tensions in early 1900s Europe

In the early 1900s, Europe was dominated by powerful nations building vast empires, which created rivalries and conflicts. This period saw a scramble for colonies, especially in Africa, as countries sought to demonstrate their strength through overseas territories.

Key imperial rivalries

• British Empire - The largest at the time, it included territories like Canada, India, and Australia, showcasing Britain's global dominance.
• Germany's ambitions - Newly unified in 1871, Germany aimed to match Britain's power by expanding its empire and military.
• Competition for superiority - Britain and Germany engaged in an arms race, each striving to build the largest navy and army, while competing for colonial territories.

These tensions heightened as empires clashed over resources and influence, setting the stage for broader conflict.

Alliances and the lead-up to war

To balance power in Europe, major countries formed alliances, intending to deter war through mutual protection. However, this system increased tensions, leading to an arms race where nations built up their militaries in competition.

The two main alliances

• Triple Alliance (Central Powers) - Formed in 1882 by Germany, Austria-Hungary, and Italy; they promised mutual aid in war. The Ottoman Empire joined in 1914, but Italy switched sides in 1915.
• Triple Entente - Established by 1907 between France, Russia, and Britain; they also pledged support if attacked. Russia withdrew in 1917 after its revolution, but the USA joined around the same time.

Germany's response to the alliances

Germany viewed the Triple Entente as an encirclement, prompting preparations for potential conflict. In response, Germany developed the Schlieffen Plan in 1905, a military strategy aimed to quickly defeat France before turning to Russia, assuming Russia would mobilise slowly and France was relatively weak.

By the early 20th century, war seemed almost inevitable, with many governments and people viewing it as a way to resolve rivalries, though a specific trigger was needed.

Outbreak of war and trench warfare

The assassination of Archduke Franz Ferdinand ignited a chain reaction through the alliance system, leading to declarations of war across Europe. What began as mobile battles soon evolved into static trench warfare due to modern weapons.

The spark and escalation in 1914

Archduke Franz Ferdinand, heir to the Austrian throne, was shot in Sarajevo by a Serbian nationalist on 28 June, heightening tensions between Austria-Hungary and Serbia.

Chain of declarations:

• Austria declared war on Serbia on 28 July after unmet demands
• Russia mobilised to protect Serbia on 29 July
• Germany declared war on Russia (1 August) and France (3 August)
• Germany invaded neutral Belgium on 4 August, prompting Britain to declare war on Germany
• Austria declared war on Russia on 6 August
• France declared war on Austria on 10 August
• Britain declared war on Austria on 12 August

Shift to trench warfare

The war started with cavalry charges and open battles, but these proved ineffective against machine guns and artillery. Soldiers dug defensive trenches to shield themselves, leading to a stalemate along the Western Front.

Conditions and impact of trench warfare

• Horrific living conditions - Trenches were cold, muddy, and infested with rats; diseases like trench foot (a painful infection from wet conditions) were common.
• High casualties - Battles such as the Somme in 1916 resulted in over a million killed or wounded, with little territorial gain.
• No man's land - The area between opposing trenches was a desolate wasteland of mud, shell craters, and bodies, as described by soldiers like Private H. Jeary.

This style of warfare dragged on for years, causing immense suffering and loss of life.

End of the war and the Treaty of Versailles

After four years of deadlock, the Triple Entente gained the upper hand, leading to Germany's defeat. The war ended with an armistice, followed by a peace treaty that imposed severe penalties on the defeated nations.

Factors leading to the war's end

A British naval blockade starved Germany of food, oil, and metals, weakening its ability to fight. Fighting ceased with the armistice on 11 November 1918 at 11:00 AM, though millions of soldiers and civilians had died; this moment is commemorated annually with a two-minute silence.

The Treaty of Versailles (1919)

The treaty was negotiated by British Prime Minister David Lloyd George, US President Woodrow Wilson, and French Prime Minister Georges Clemenceau, without input from Germany or Austria.

Key terms of the treaty:

• War guilt clause - Germany was blamed for starting the war and required to accept full responsibility.
• Reparations - Germany had to pay £6600 million to cover damages in France and Belgium.
• Territorial losses - Germany lost land to Poland, France (Alsace-Lorraine), and Czechoslovakia; all colonies were given to Entente countries.
• Military restrictions - Germany's army was limited to 100,000 men, navy to six battleships; no planes or tanks allowed; troops withdrawn from the Rhineland (demilitarised zone).
• Breakup of empires - The Austrian Empire was dismantled, and Austria was forbidden from allying with Germany.
• League of Nations - Established to promote peace through discussion, though it lacked an army and full membership (e.g., USA never joined).

The treaty officially ended the war but left Europe economically devastated.

Germany's response and the League of Nations

Germany resented the Treaty of Versailles, viewing it as unjust and punitive, which fostered bitterness. The League of Nations, intended to prevent future wars, proved ineffective in maintaining peace.

Reasons for Germany's unhappiness

• Economic strain - Reparations and war costs left Germany nearly bankrupt.
• Military vulnerability - The reduced army and navy made Germany feel defenceless.
• Perceived unfairness - Germany rejected sole blame, felt punished by land losses, and saw the treaty as a 'Diktat' (dictated order) since it was excluded from negotiations.
• Sense of betrayal - Many Germans believed they hadn't truly lost, as their territory was larger at the war's end and no invasion had occurred, blaming their government for surrender.

Effectiveness of the League of Nations

The League resolved some disputes, such as preventing war between Yugoslavia and Albania in 1921. However, it failed to stop aggressions like Italy's invasion of Abyssinia in 1935 or Hitler's actions in the 1930s, including rearming Germany, occupying the Sudetenland, and allying with Austria, all violating the treaty.

By World War Two's start, the League had failed to prevent conflict. It was abandoned in 1945 and replaced by the United Nations, which granted more power to key members and didn't require unanimous decisions, making it more effective.