Ottoman Empire's Demise: The Year They Were Defeated

Christopher Jul 29, 2026

Born out of the collapse of the Byzantine Empire, the Ottoman Empire, founded by Osman I, ruled much of Southeastern Europe, Western Asia, and North Africa for over six centuries. Its decline began in the late 18th century, marked by a gradual loss of territories and eventual dissolution, leading to its ultimate defeat in the 20th century. Let's delve into this turning point in history.

On 10/07/20.
On 10/07/20.

The Ottoman Empire's decline was the result of internal administrative issues, technological advancements, and external pressures. This context sets the stage for its eventual defeat and dissolution. Now, let's explore the key milestones in this process.

When the Knights Defeated the Ottomans at Malta
When the Knights Defeated the Ottomans at Malta

Growing External Pressures

By the 18th century, the Ottoman Empire faced mounting pressure from European powers. The Treaty of Carlowitz (1699) and Treaty of Passarowitz (1718) significantly reduced Ottoman territories in Europe, marking the beginning of its retreat on that front.

Bulgaria defeating the Ottoman Turks at Edirne, Balkan War, 1913
Bulgaria defeating the Ottoman Turks at Edirne, Balkan War, 1913

Meanwhile, in the East, imperial expansion by the Persian Empire and Russia further diminished Ottoman influence. These external pressures were just the appetizers; the main courses were yet to come.

Russian Influence in the North

Chesma,1770 - The Humiliating Defeat of the Ottomans by the Russians | War History Online
Chesma,1770 - The Humiliating Defeat of the Ottomans by the Russians | War History Online

The 19th century saw Russia's rise and its expansion into Ottoman territories. The Crimean War (1853-1856) resulted in more Ottoman losses. Then, the Russo-Turkish War (1877-1878) led to the historic Treaty of San Stefano, which partitioned Ottoman territories and established the independent state of Bulgaria.

The Congress of Berlin (1878) following this war further diminished Ottoman influence. The empire's losses in the Balkans set the stage for its ultimate defeat and disintegration in the 20th century.

European Scramble for Africa and the Middle East

How The Ottomans Defeated The Roman Empire
How The Ottomans Defeated The Roman Empire

As Europe colonized Africa in the late 19th and early 20th centuries, Ottoman territories became collateral damage. The Berlin Act (1896) placed Ottoman finances under international oversight, further limiting the empire's autonomy.

The Young Turk Revolution in 1908 brought reforms but couldn't arrest the empire's decline. The Balkan Wars (1912-1913) resulted in more territorial losses, and the Ottoman Navy's defeat by the Italian forces in the Battle of Preveza (1912) demonstrated its diminished military capability.

World War I and the Empire's End

an image of a painting with many people in the sky and on top of it
an image of a painting with many people in the sky and on top of it

The Ottoman Empire's entry into World War I on the side of the Central Powers was its final throw of the dice. The defeats that followed, such as the Battle of Gallipoli (1915-1916) and the Mesopotamian Campaign, sealed its fate.

The 1917 Arab Revolt, which ignited the Mojahideen movement, further weakened imperial control of its Middle Eastern territories.

an image of a painting on the twitter account that reads, when u haven't even anything all day
an image of a painting on the twitter account that reads, when u haven't even anything all day
How the Battle of Vienna Ended Ottoman Expansion in Europe | TheCollector
How the Battle of Vienna Ended Ottoman Expansion in Europe | TheCollector
an image of a painting of people in the middle of a battle with men holding swords
an image of a painting of people in the middle of a battle with men holding swords
When 500 Knights Defeated 40,000 Soldiers From the Ottoman Empire: The Siege of Malta
When 500 Knights Defeated 40,000 Soldiers From the Ottoman Empire: The Siege of Malta
10/21/1603 Tabriz, East Azerbaijan, Iran
10/21/1603 Tabriz, East Azerbaijan, Iran
the battle of varna, 10th november 444
the battle of varna, 10th november 444
The Key Battles That Built The Ottoman Empire
The Key Battles That Built The Ottoman Empire
a painting of the battle between two men on horseback with flags flying in the background
a painting of the battle between two men on horseback with flags flying in the background
The Bloody Siege of Rhodes: The Ottomans & Their Unstoppable Empire
The Bloody Siege of Rhodes: The Ottomans & Their Unstoppable Empire

The Armenian Genocide

During WWI, the Ottoman government systematically eradicated its Armenian population, a campaign historians widely recognize as the Armenian Genocide. This dark event exacerbated the empire's international isolation and led to further territorial losses with the Treaty of Sèvres (1920).

The war's end and the ensuing treaty left the empire a mere shell of its former self, with its capital Constantinople occupied by the Allies and the Ottoman Sultan's power significantly diminished.

The Turkish War of Independence and the Treaty of Lausanne

In response to the harsh terms of the Treaty of Sèvres, a Turkish National Movement emerged under the leadership of Mustafa Kemal Atatürk. The military campaigns that followed resulted in a decisive victory at the Battle of Sakarya (1921), leading to the signing of the Treaty of Lausanne (1923).

With this treaty, the modern state of Turkey was founded, acknowledging the end of the Ottoman Empire and marking the final defeat of the Ottoman state system.

The dissolution of the Ottoman Empire was a complex process, shaped by internal and external forces. Despite its eventual defeat and end, the empire's legacy remainsLETE in shaping the political, cultural, and social landscapes of the Middle East and beyond. Today, this legacy continues to influence regional politics and cultural heritage, offering a poignant reminder of history's enduring impact.