A Changing Global Balance of Power

The early 20th century marked a significant shift in global power structures, as long-standing land-based empires weakened and new political systems emerged. The period around 1900–1920 saw internal instability, external pressures, and rising nationalist movements contribute to the collapse of major empires. These transformations reshaped political boundaries and redefined governance across Europe, the Middle East, and parts of Asia.

Four major land-based empires—the Ottoman Empire, Austro-Hungarian Empire, Russian Empire, and Qing Dynasty—experienced dramatic decline. Each empire faced a combination of internal weaknesses and external challenges that ultimately led to their collapse. The aftermath of World War I accelerated these processes, redrawing borders and giving rise to new nation-states.

Internal Weaknesses Within Empires

Land-based empires struggled with internal instability long before their final collapse. These empires governed diverse populations with different languages, religions, and ethnic identities. As nationalist movements spread in the late 19th and early 20th centuries, many subject peoples demanded self-determination—the right to form their own independent states.

The Ottoman Empire, often called the “Sick Man of Europe,” faced growing unrest among Armenians, Arabs, Greeks, and other ethnic groups. Administrative inefficiency, economic stagnation, and military defeats weakened its authority.

The Austro-Hungarian Empire governed multiple ethnic groups including Czechs, Slovaks, Hungarians, Croats, and Serbs. Rising Slavic nationalism destabilized imperial unity, particularly in the Balkans.

The Russian Empire experienced social unrest fueled by industrialization, economic inequality, and political repression. The 1905 Revolution exposed deep dissatisfaction with Tsar Nicholas II’s autocratic rule.

China’s Qing Dynasty struggled with corruption, population growth, foreign interference, and internal rebellions such as the Taiping Rebellion earlier in the century. By the early 1900s, reform efforts failed to prevent collapse.

The Young Turk movement (1908) attempted reform but also promoted Turkish nationalism. The empire suffered major losses in the Balkan Wars (1912–1913), shrinking its European territory.

During World War I, the Ottoman Empire joined the Central Powers (Germany and Austria-Hungary). Following defeat in 1918, the Treaty of Sèvres (1920) partitioned Ottoman lands among Allied powers. Britain and France gained mandates over former Ottoman territories, including Iraq, Palestine, Syria, and Lebanon.

Mustafa Kemal (Atatürk) led a nationalist resistance movement, rejecting the treaty. After the Turkish War of Independence, the Treaty of Lausanne (1923) recognized the sovereignty of the Republic of Turkey.

Atatürk implemented sweeping reforms:

• Abolished the sultanate (1922)

• Abolished the caliphate (1924)

• Replaced Islamic law with secular civil codes

• Adopted the Latin alphabet

• Expanded women’s rights

• The Ottoman collapse resulted from:

• Military defeat in World War I

• Ethnic nationalism

• External partition by Allied powers

It led to the creation of a secular nation-state based on Turkish nationalism rather than imperial multiethnic identity.

Russia’s defeat in the Russo-Japanese War (1904–1905) severely damaged the regime’s credibility. The loss triggered the 1905 Revolution, during which workers organized strikes and protests, most notably the event known as Bloody Sunday. Although Nicholas II created the Duma (a legislative assembly), he maintained ultimate authority and limited its power, failing to satisfy reformers.

World War I intensified internal collapse. Russia suffered massive casualties, military defeats, food shortages, and economic breakdown. By early 1917, bread riots erupted in Petrograd. In March 1917 (February Revolution), Nicholas II abdicated, ending Romanov rule after more than 300 years. A Provisional Government attempted to govern but continued Russia’s involvement in the war, losing public support.

In November 1917 (October Revolution), the Bolsheviks led by Vladimir Lenin and Leon Trotsky seized power, promising “peace, land, and bread.” After withdrawing from World War I through the Treaty of Brest-Litovsk (1918), Russia descended into civil war between the Red Army (Bolsheviks) and White Army (anti-communists). By 1922, the Bolsheviks prevailed and formally established the Union of Soviet Socialist Republics (USSR).

The collapse of the Russian Empire resulted from:

• Internal unrest (worker strikes, peasant grievances, political repression)

• Military defeat (Russo-Japanese War, World War I)

• Economic breakdown (food shortages, inflation)

It led to the creation of the world’s first communist state, fundamentally shifting global ideology in the 20th century.

Foreign spheres of influence divided China economically and politically. Japan’s victory over China in the Sino-Japanese War (1894–1895) further demonstrated Qing weakness. Reform movements like the Self-Strengthening Movement and the Hundred Days’ Reform failed to modernize the state sufficiently.

By 1911, revolutionary groups led by Sun Yat-sen organized uprisings against the Qing government. The Wuchang Uprising triggered the 1911 Revolution, forcing the abdication of the last emperor, Puyi, in 1912.

China was declared a republic, and Sun Yat-sen became provisional president. However, power soon shifted to Yuan Shikai, whose attempt to declare himself emperor further destabilized the nation. After his death in 1916, China fractured into a warlord era, where regional military leaders controlled different territories.

The fall of the Qing resulted from:

• Internal rebellions and peasant unrest

• Foreign imperial pressure

• Failed reform efforts

• Rising nationalism

Although the imperial system ended, China did not immediately stabilize. The power vacuum eventually contributed to conflict between Nationalists (Guomindang) and Communists, leading to decades of civil war.

In 1910, Francisco Madero challenged Díaz in presidential elections. When Díaz imprisoned Madero and claimed victory, revolution erupted. The Mexican Revolution (1910–1920) involved multiple factions, including Emiliano Zapata (who advocated land reform) and Pancho Villa.

Violence and civil war reshaped Mexico for a decade. In 1917, a new constitution was adopted, which included:

• Land redistribution provisions

• Labor protections

• Limits on foreign ownership of land and resources

• Expanded federal authority

• Mexico’s transformation resulted from:

• Social inequality

• Political repression

• Economic exploitation

• Nationalist demands for reform

Unlike the other empires, Mexico was not dismantled by foreign invasion, but internal revolution fundamentally altered its political structure.

Global Revolutionary Movements and Ideological Change

The early 20th century witnessed the collapse of long-standing imperial systems and the emergence of new political structures rooted in nationalism, reform, or revolutionary ideology.

• Russia transitioned from monarchy to communism.

• China moved from imperial rule to republican governance.

• The Ottoman Empire transformed into the secular Republic of Turkey.

• Mexico experienced revolutionary reform and constitutional restructuring.

Internal instability, military defeat, economic hardship, and nationalist movements all contributed to these transformations. While new states emerged, many continued to face political instability, ethnic tensions, and ideological conflict.

These changes reshaped global power and set the stage for the ideological struggles and wars that defined the remainder of the 20th century.