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Battle of Tannenberg
The Battle of Tannenberg was a major World War I engagement fought between Germany and Russia from August 26-30, 1914, resulting in a decisive German victory and the near annihilation of the Russian Second Army under General Alexander Samsonov, who ultimately committed suicide following the defeat; the battle is notable for the German commanders Paul von Hindenburg and Erich Ludendorff's effective use of tactics and intelligence to surround and destroy the isolated Russian forces. -
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First Battle of the Marne
It was a pivotal battle fought during World War I between September 5-12, 1914, where the French and British armies successfully halted the German advance towards Paris, marking a major turning point in the war by preventing a quick German victory and setting the stage for trench warfare on the Western Front; this battle is often referred to as the "Miracle of the Marne" due to the unexpected French counteroffensive that pushed the Germans back from the outskirts of Paris. -
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Battle of Gallipoli
Also known as the Gallipoli Campaign, was a major military operation during World War I were Allied forces, primarily consisting of Australian and New Zealand troops , landed on the Gallipoli peninsula in Ottoman Turkey on April 25, 1915, with the aim of capturing Constantinople by gaining control of the Dardanelles Strait; however, the campaign resulted in a disastrous Allied defeat, marked by heavy casualties and a stalemate that ultimately led to a withdrawal of Allied troops by early 1916. -
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Second Battle of Ypres
It was a significant World War I engagement primarily remembered for being the first large-scale use of chemical weapons (chlorine gas) by the German army against Allied forces, specifically targeting French and Algerian troops near the Belgian town of Ypres; this battle marked Canada's first major engagement in the war, where Canadian troops played a crucial role in holding the line against the German gas attack and subsequent offensive. -
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Battle of Verdun
The Battle of Verdun, fought from February 21 to December 18, 1916, was one of the longest and bloodiest battles of World War I, where the French successfully defended the strategically important city of Verdun against a major German offensive, resulting in devastating casualties on both sides with roughly 300,000 soldiers killed in total. -
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Battle of Jutland
The Battle of Jutland was the largest naval battle of World War I, fought between the British Grand Fleet and the German High Seas Fleet on May 31 - June 1, 1916, off the coast of Jutland[, Denmark; it involved around 250 ships and 100,000 men, with the British ultimately losing more ships but maintaining control of the North Sea, making the battle a tactical British victory despite heavy losses on both sides. -
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Brusilov Offensive
The Brusilov Offensive was a major Russian military operation during World War I, launched on June 4, 1916, against the Austro-Hungarian forces on the Eastern Front, led by General Aleksei Brusilov; considered one of the largest and deadliest offensives of the war, it inflicted heavy losses on the Austro-Hungarian army, forcing Germany to divert troops from the Western Front, and ultimately contributing to the growing unrest within Russia that would lead to the revolution in 1917. -
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Battle of the Somme
It was a major World War I battle fought between the British and French armies against the German Empire, taking place from July 1st to November 18th, 1916, along the Somme River in northern France; considered one of the bloodiest battles in history, it saw devastating casualties on both sides, with the first day alone resulting in over 57,000 British casualties, making it the deadliest day in British military history. -
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Battle of Passchendaele
The Battle of Passchendaele, also known as the Third Battle of Ypres, was a major World War I battle fought between July and November 1917 in the Ypres salient of Belgium, where Allied forces, primarily British, attempted to capture the strategically important high ground around the ruined village of Passchendaele against German troops. -
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Battle of Caporetto
The Battle of Caporetto, which took place from October 24th to November 19th, 1917, was a devastating defeat for the Italian army during World War I, where a combined Austro-German force launched a surprise attack on the Italian front along the Isonzo River, resulting in a massive Italian retreat and heavy casualties, considered one of the worst military disasters in Italian history.