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Wars That Changed World History

Explore the major wars that transformed nations, empires, borders, governments, and societies throughout history. Discover important conflicts, battles, campaigns, military leaders, political turning points, and peace agreements, from ancient warfare to modern wars, and examine their lasting effects on world history.

Major Historical Events Involving Wars

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📅 Sep 13, 533

Belisarius Defeats the Vandals at Ad Decimum

On September 13, 533, Belisarius defeated the Vandals at Ad Decimum and went on to retake North Africa for the empire.

⛳Tunisia
🔖Wars
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📅 Oct 7, 1571

The Battle of Lepanto Breaks Ottoman Naval Power in the Mediterranean

The Holy League fleet destroyed the Ottoman navy at Lepanto on October 7, 1571, in the last great battle fought by oared galleys.

⛳Greece
🔖Wars
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📅 Sep 12, 1683

A Christian Alliance Breaks the Ottoman Siege of Vienna

On September 12, 1683, a Polish-led relief army broke the Ottoman siege of Vienna, ending Turkish expansion in Europe.

⛳Austria
🔖Wars
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📅 Sep 13, 1759

The British Win the Plains of Abraham Outside Quebec

On September 13, 1759, Wolfe defeated Montcalm on the Plains of Abraham outside Quebec; both generals died of their wounds.

⛳Canada
🔖Wars
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📅 Sep 5, 1781

The French Fleet Wins the Battle of the Chesapeake

On September 5, 1781, the French fleet beat the British at the Battle of the Chesapeake, leaving Cornwallis trapped at Yorktown.

🔖Wars
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📅 Oct 14, 1806

Napoleon Defeats Prussia at Jena and Auerstedt

On October 14, 1806, Napoleon defeated the Prussian army at Jena and Auerstedt, and Prussia collapsed within two weeks.

⛳Germany
🔖Wars
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📅 Sep 14, 1814

Francis Scott Key Writes the Defence of Fort McHenry

On September 14, 1814, Francis Scott Key wrote Defence of Fort McHenry, the poem that became the US national anthem.

📖Culture
🔖Wars
⌛
📅 Oct 23, 1856

The Arrow Incident Opens the Second Opium War

On October 23, 1856, British forces attacked the forts on the Pearl river near Guangzhou, opening the Second Opium War.

⛳China⛳United Kingdom
📖Diplomacy📖Military & Warfare
🔖Wars
⌛
📅 Oct 29, 1863

The Red Cross Is Founded

On October 29, 1863, sixteen nations met in Geneva and founded the Red Cross to aid war's wounded.

🔖Wars
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📅 Sep 1, 1870

Battle of Sedan: Napoleon III Captured

On September 1, 1870, Prussia destroyed the French army at Sedan and captured Napoleon III, ending the Second Empire.

⛳France
🔖Wars
⌛
📅 Oct 24, 1898

Peng Dehuai Is Born in Hunan

On October 24, 1898, Peng Dehuai, one of the ten marshals of the People's Liberation Army and commander in the Korean War, was born in Hunan.

⛳China
📖Military & Warfare📖People
🔖Wars
⌛
📅 Sep 5, 1905

Treaty of Portsmouth Ends the Russo-Japanese War

On September 5, 1905, Russia and Japan signed the Treaty of Portsmouth, ending their war and confirming Japan's position in Korea.

📖Diplomacy
🔖Wars
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📅 Oct 24, 1917

The Battle of Caporetto

On October 24, 1917, Austro-German forces broke the Italian line at Caporetto, forcing a retreat of more than 100 kilometres to the Piave river.

⛳Italy
🔖Wars
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📅 Oct 22, 1936

The Three Red Armies Meet in Gansu

On October 22, 1936, the main Red Army forces met at Jiangtaibao in Gansu, completing the Long March that had begun in 1934.

⛳China
📖Military & Warfare📖Politics
🔖Wars
⌛
📅 Oct 26, 1937

The Defence of Sihang Warehouse

On October 26, 1937, a Chinese battalion under Xie Jinyuan began defending Sihang warehouse in Shanghai, holding out for four days.

⛳China
🔖Wars
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📅 Oct 25, 1938

The Battle of Wuhan Ends

On October 25, 1938, Chinese forces withdrew from Wuhan, ending a four and a half month battle and beginning a long stalemate in the war with Japan.

⛳China
🔖Wars
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📅 Sep 15, 1950

UN Forces Land at Inchon

On September 15, 1950, UN forces landed at Inchon behind North Korean lines, reversing the course of the Korean War.

⛳South Korea
🔖Wars
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📅 Oct 29, 1956

The Suez War Begins

On October 29, 1956, Israeli forces entered Sinai and the Suez war began, after Egypt nationalised the Suez Canal company.

⛳Egypt⛳France⛳Israel⛳United Kingdom
📖Diplomacy📖Military & Warfare
🔖Wars
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📅 Oct 20, 1962

War Breaks Out on the China-India Border

On October 20, 1962, fighting began along the China-India border in the Himalayas, opening a war that lasted about a month.

⛳China⛳India
📖Diplomacy📖Military & Warfare
🔖Wars
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📅 Sep 11, 2001

The September 11 Attacks on the United States

On September 11, 2001, hijackers flew four planes into the World Trade Center and the Pentagon, killing nearly 3,000 people.

🔖Wars