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World War 1 Essay | Essay on World War 1 for Students and Children in English

February 14, 2024 by Prasanna

World War 1 Essay: World War 1 was started in July 1914 and officially ended on November 11, 1918. Conflicts emerged among the most powerful forces in the modern world with the Austro-Hungarian Empire, Germany and the Ottoman Empire (and briefly Italy) on one side, and Britain, France, Russia, and later the United States on the other side during the war.

The war took the lives of some 20 million people and the world’s great empires fell. Czarist Russia turned into reinstated as the communist Soviet Union. Imperial Germany turned into reinstated as the Weimar Republic and lost some parts of its territory in the East and West.

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Long and Short Essays on World War 1 for Students and Kids in English

We are providing students with essay samples on a long essay of 500 words and a short of 150 words on the topic of World War 1 for reference.

Long Essay on World War 1 Essay 500 Words in English

Long Essay on World War 1 Essay is usually given to classes 7, 8, 9, and 10.

World War 1 started with a European conflict and gradually it developed into a World War. Militarism, nationalism, imperialism, and alliances increased the tensions among the European countries. The first reason, militarism, is known as the trend toward developing military resources, both for national defense and the protection of colonial interests.

Militarism indicated a rise in military disbursement and it extended to military and naval forces. It put more impact on the military men upon the policies of the civilian government. As a solution to problems militarism had a preference for force. This was one of the main reasons for the First World War. The second reason is there were too many alliances that frequently clashed with each other. Every country was pawning to safeguard others, creating intertwining mutual protection schemes.

They made alliances in secret, and they created a lot of mistrust and intuition among the European powers. Their general intuition stopped their diplomats to find a proper solution to many of the crises leading to war. Imperialism was the third reason for the First World War. As some areas of the world were left to colonize, nations were competing for subsisting colonies, and they were looking for enlarging their borders with adjacent countries. The fourth cause was nationalism. Nationalism is frequently insinuated to as identification with one’s own country and support for the country. Nationalism contains a strong recognition of a group of personnel with a political entity.

The support of individuals for their own country can become of one’s nation can become hatred of other nations. These were just some of the basic reasons for the war. Many people think that the instant reason for the war was because of the assassination of Archduke Francis Ferdinand, the successor to Austria-Hungary’s throne. Archduke Ferdinand was fired and murdered due to what was thought to be a political conspiracy. The Austro-Hungarian Empire suddenly doubted Serbian conspiracy in the assassination and looked to frame a response that would both punish Serbia, and make the world respect Austria-Hungary’s prestige and determination.

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The Great War lasted four years. The war was finally over after four years and it took the lives of many people. On the eleventh hour of the eleventh day of the eleventh month of 1918, a cease-fire went into effect for all fighters. Though the war has been finished, the effects, are still seen perceptible in the world today.

In the aftermath of World War 1, the political, cultural, and social order of the world was drastically changed in many places, even outside the areas directly involved in the war. Old nations were removed, new nations were formed, international organizations set up, and many new and old ideas took a stronghold in people’s minds.

As Europe fell in debt from war investment, inflation beset the continent. In addition to this, the buoyancy of previous decades was relinquished and a discouraging, gloomy outlook on life was adopted after people had experienced the ferocity of warfare and the effects of the war were brutal.

Short Essay on World War 1 Essay 150 Words in English

Short Essay on World War 1 Essay is usually given to classes 1, 2, 3, 4, 5, and 6.

The War took the lives of approximately 20 million people and put a break in the economic development of several nations. The war happened between two parties consisting of more than one hundred nations. Though all of them did not send armed forces to the battlefield, they were a hoard of commodities and human resources and provided moral support to their companions. It continued for 4 long years from 1914 to 1918. Indian soldiers also took part in World War 1 as a colony of Britain from Africa and West Asia.

India had an aspiration that they might win independence. World War 1 war laid down the economy of the world. It led to food shortage, an outbreak of a pandemic, scarcity of vital items, etc. At the end of 1918, the war came to an end. The Allied Powers won the war. Both parties signed the Peace Treaty called an armistice.

10 Lines on World War 1 Essay in English

1. The First World War was instigated in 1914 by Serbia. 2. The cause of the war was a competition between countries to acquire weapons and build military powers. 3. In 1914, Serbia aroused anger by assassinating Archduke Franz Ferdinand, the heir of Austria-Hungary throne. 4. The Allied Powers, and the Central Powers fought against each other. 5. The Central Powers include countries, such as Germany, Bulgaria, Austria-Hungary, Ottoman Empire, and Turkey. 6. The Allied Powers consisted of Serbia, Russia, The United Kingdom, France, Italy, Japan, and Belgium. 7. India, as a British colony, supported Britain. 8. The German adopted a militaristic Schlieffen approach. 9. World War 1 was fought from trenches, so it is also called the Trench War. 10. The War ended in 1918 after both allies signed an armistice.

FAQ’s on World War 1 Essay

Question 1. List the names of the two allies of the First World War 1914-1918.

Answer: The Allied Powers and the Central Powers.

Question 2. Who declared the First World War?

Answer: Austria-Hungary.

Question 3. Name the countries of Allied Powers.

Answer: Britain, Japan, France, Italy, Russia, the USA.

Question 4.  Why did the First World War end?

Answer: The First World War ended in November 1918 when both allies signed the Peace Treaty known as an armistice.

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The Causes and Effects of World War I Essay

Introduction.

The effects of World War I can be seen around the world even now, more than one hundred years after its end; however, there is still no consensus as to its cause. In the words of Alfred Korzybski, “the destruction was brought about by nationalism, entangled alliances, narrow ethnic concerns, and desires for political gain – forces that are still with people today.” (cited in Levinson, 2014). Even though the majority of United States citizens did not have the direct experience of the terrific upset that the war caused in Europe, it can be argued that the country’s concern with championing democracy around the globe is one of its products (Levinson, 2014).

Many historians agree that an atmosphere of twentieth-century Europe was conducive to the creation of a complex mixture of economic, social, and political reasons that translated into powerful forces of imperialistic, nationalistic, and militaristic movements leading to the diplomatic crises of 1914 (Donaldson, 2014). Therefore, it can be said that the blame for the war could not be assigned to any individual country or a group of countries.

Nonetheless, the issue of responsibility was the main focus of the world in the years following the Armistice of 1918 (Donaldson, 2014). To this end, the Commission on the Responsibility of the Authors of the War and the Enforcement of Penalties met in Paris in 1919 (Donaldson, 2014). The investigation conducted by the commission showed that Germany and Austria, along with Turkey and Bulgaria as their allies, were responsible for the aggressive foreign policy tactics that led to the precipitation of the war (Donaldson, 2014).

The start of World War I was precipitated by the assassination of the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand, on June 28, 1914 (Mulligan, 2010) The elimination of the high-standing official was carried out by the group of secret society members called Black Hand and directed by Bosnian Serb Danilo Ilić (Storey, 2009). The political objective of the murder was to separate Austria-Hungary’s South Slav provinces to combine them into Yugoslavia (Storey, 2009).

In response to the killing of their official, Austria-Hungary issued an ultimatum to Serbia that commanded its government to prosecute the assassins. The objective of the ultimatum was to make its terms so strict that Serbia would be forced to reject it, thereby giving an excuse for launching a small war against it (Storey, 2009). Taking into consideration that Serbia had diplomatic relationships with Russia strengthened by their shared Slavic ties, the Austro-Hungarian government decided to take precautions against the two countries declaring war on it and allied with Germany. It is agreed that Germany was not opposed to Austro-Hungarian bellicosity, but rather supported and encouraged it, thus providing one more reason for the precipitation of the Great War (Levinson, 2014).

Even though Serbia’s response to the ultimatum was placating, Austria-Hungary decided to take aggressive action and declare war. It is argued that the main reason for World War I was the web of entangling alliances among the countries having an interest in the conflict between Austro-Hungary and Serbia (Storey, 2009). Following the Austro-Hungarian declaration of war, the Russian monarch mobilized his army because of the binding commitment of the treaty signed by the two countries.

As a result, on August 3, 1914, Germany declared war on the Russian Empire (Levinson, 2014). France was bound by treaty to Russia, and, therefore, had to start a war on Austria-Hungary and Germany. Even though a treaty tying France and Britain was loosely worded, the latter country had “a moral obligation” to defend the former (Levinson, 2014). Therefore, Britain and its allies Australia, Canada, India, New Zealand, Japan, and the Union of South Africa also took a bellicose stance against Germany and offered their assistance in the military action against the country (Levinson, 2014). Thus, a gigantic web of entangling alliances pushed numerous countries to the precipice of war over what was intended to be a small-scale conflict between Austria-Hungary and Serbia.

Numerous other reasons led to World War I. The conflicting political interests of Russia and Japan over Manchuria and Korea resulted in a military defeat of Russia (Levinson, 2014). Therefore, the country wanted to restore its dignity by a victorious war. During the same period, a lot of small nations were seething with discontent over the Turkish and Austro-Hungarian rule, thereby providing an opportunity for the Russian Empire further to stir resentment by firing up nationalistic zeal under a pretense of pan-Slavic narrative (Levinson, 2014).

Austria-Hungary, on the other hand, sought an opportunity to establish its influence over a vast territory of mixed nations; the assassination of the heir to the Austro-Hungarian throne provided them with a perfect excuse for the initiation of the war. Political clashes in Germany were a reason for the country’s government to resort to the military conflict as a way of “averting civil unrest” (Levinson, 2014). Another factor that caused World War I was the desire of France to revenge a military defeat in the Franco-Prussian War of 1871 (Levinson, 2014).

It is impossible to name a single reason for the initiation of World War I. However, it is clear that the entangling web of alliances among numerous parties participating in the war, as well as complicated plots of governments and empires, led the small-scale dispute between Austria-Hungary and Serbia escalating into a military conflict that swept the entire world.

Donaldson, P. (2014). Interpreting the origins of the First World War. Teaching History , 155 (4), 32-33.

Levinson, M. (2014). Ten cautionary GS lessons from World War I. Et Cetera, 71 (1), 41-48.

Mulligan, W. (2010). The origins of the First World War . Cambridge, England: Cambridge University Press.

Storey, W. (2009). The First World War . Lanham, MD: Rowman & Littlefield Publishers.

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World War I

By: History.com Editors

Updated: May 10, 2024 | Original: October 29, 2009

World War I, also known as the Great War, started in 1914 after the assassination of Archduke Franz Ferdinand of Austria. His murder catapulted into a war across Europe that lasted until 1918. During the four-year conflict, Germany, Austria-Hungary, Bulgaria and the Ottoman Empire (the Central Powers) fought against Great Britain, France, Russia, Italy, Romania, Canada, Japan and the United States (the Allied Powers). Thanks to new military technologies and the horrors of trench warfare, World War I saw unprecedented levels of carnage and destruction. By the time the war was over and the Allied Powers had won, more than 16 million people—soldiers and civilians alike—were dead.

Archduke Franz Ferdinand

Tensions had been brewing throughout Europe—especially in the troubled Balkan region of southeast Europe—for years before World War I actually broke out.

A number of alliances involving European powers, the Ottoman Empire , Russia and other parties had existed for years, but political instability in the Balkans (particularly Bosnia, Serbia and Herzegovina) threatened to destroy these agreements.

The spark that ignited World War I was struck in Sarajevo, Bosnia, where Archduke Franz Ferdinand —heir to the Austro-Hungarian Empire—was shot to death along with his wife, Sophie, by the Serbian nationalist Gavrilo Princip on June 28, 1914. Princip and other nationalists were struggling to end Austro-Hungarian rule over Bosnia and Herzegovina.

The Great War

Watch The Great War . Available to stream now.

The assassination of Franz Ferdinand set off a rapidly escalating chain of events: Austria-Hungary , like many countries around the world, blamed the Serbian government for the attack and hoped to use the incident as justification for settling the question of Serbian nationalism once and for all.

Kaiser Wilhelm II

Because mighty Russia supported Serbia, Austria-Hungary waited to declare war until its leaders received assurance from German leader Kaiser Wilhelm II that Germany would support their cause. Austro-Hungarian leaders feared that a Russian intervention would involve Russia’s ally, France, and possibly Great Britain as well.

On July 5, Kaiser Wilhelm secretly pledged his support, giving Austria-Hungary a so-called carte blanche, or “blank check” assurance of Germany’s backing in the case of war. The Dual Monarchy of Austria-Hungary then sent an ultimatum to Serbia, with such harsh terms as to make it almost impossible to accept.

World War I Begins

Convinced that Austria-Hungary was readying for war, the Serbian government ordered the Serbian army to mobilize and appealed to Russia for assistance. On July 28, Austria-Hungary declared war on Serbia, and the tenuous peace between Europe’s great powers quickly collapsed.

Within a week, Russia, Belgium, France, Great Britain and Serbia had lined up against Austria-Hungary and Germany, and World War I had begun.

The Western Front

According to an aggressive military strategy known as the Schlieffen Plan (named for its mastermind, German Field Marshal Alfred von Schlieffen ), Germany began fighting World War I on two fronts, invading France through neutral Belgium in the west and confronting Russia in the east.

On August 4, 1914, German troops crossed the border into Belgium. In the first battle of World War I, the Germans assaulted the heavily fortified city of Liege , using the most powerful weapons in their arsenal—enormous siege cannons—to capture the city by August 15. The Germans left death and destruction in their wake as they advanced through Belgium toward France, shooting civilians and executing a Belgian priest they had accused of inciting civilian resistance. 

First Battle of the Marne

In the First Battle of the Marne , fought from September 6-9, 1914, French and British forces confronted the invading German army, which had by then penetrated deep into northeastern France, within 30 miles of Paris. The Allied troops checked the German advance and mounted a successful counterattack, driving the Germans back to the north of the Aisne River.

The defeat meant the end of German plans for a quick victory in France. Both sides dug into trenches , and the Western Front was the setting for a hellish war of attrition that would last more than three years.

Particularly long and costly battles in this campaign were fought at Verdun (February-December 1916) and the Battle of the Somme (July-November 1916). German and French troops suffered close to a million casualties in the Battle of Verdun alone.

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World War I Books and Art

The bloodshed on the battlefields of the Western Front, and the difficulties its soldiers had for years after the fighting had ended, inspired such works of art as “ All Quiet on the Western Front ” by Erich Maria Remarque and “ In Flanders Fields ” by Canadian doctor Lieutenant-Colonel John McCrae . In the latter poem, McCrae writes from the perspective of the fallen soldiers:

Published in 1915, the poem inspired the use of the poppy as a symbol of remembrance.

Visual artists like Otto Dix of Germany and British painters Wyndham Lewis, Paul Nash and David Bomberg used their firsthand experience as soldiers in World War I to create their art, capturing the anguish of trench warfare and exploring the themes of technology, violence and landscapes decimated by war.

The Eastern Front

On the Eastern Front of World War I, Russian forces invaded the German-held regions of East Prussia and Poland but were stopped short by German and Austrian forces at the Battle of Tannenberg in late August 1914.

Despite that victory, Russia’s assault forced Germany to move two corps from the Western Front to the Eastern, contributing to the German loss in the Battle of the Marne.

Combined with the fierce Allied resistance in France, the ability of Russia’s huge war machine to mobilize relatively quickly in the east ensured a longer, more grueling conflict instead of the quick victory Germany had hoped to win under the Schlieffen Plan .

Russian Revolution

From 1914 to 1916, Russia’s army mounted several offensives on World War I’s Eastern Front but was unable to break through German lines.

Defeat on the battlefield, combined with economic instability and the scarcity of food and other essentials, led to mounting discontent among the bulk of Russia’s population, especially the poverty-stricken workers and peasants. This increased hostility was directed toward the imperial regime of Czar Nicholas II and his unpopular German-born wife, Alexandra.

Russia’s simmering instability exploded in the Russian Revolution of 1917, spearheaded by Vladimir Lenin and the Bolsheviks , which ended czarist rule and brought a halt to Russian participation in World War I.

Russia reached an armistice with the Central Powers in early December 1917, freeing German troops to face the remaining Allies on the Western Front.

America Enters World War I

At the outbreak of fighting in 1914, the United States remained on the sidelines of World War I, adopting the policy of neutrality favored by President Woodrow Wilson while continuing to engage in commerce and shipping with European countries on both sides of the conflict.

Neutrality, however, it was increasingly difficult to maintain in the face of Germany’s unchecked submarine aggression against neutral ships, including those carrying passengers. In 1915, Germany declared the waters surrounding the British Isles to be a war zone, and German U-boats sunk several commercial and passenger vessels, including some U.S. ships.

Widespread protest over the sinking by U-boat of the British ocean liner Lusitania —traveling from New York to Liverpool, England with hundreds of American passengers onboard—in May 1915 helped turn the tide of American public opinion against Germany. In February 1917, Congress passed a $250 million arms appropriations bill intended to make the United States ready for war.

Germany sunk four more U.S. merchant ships the following month, and on April 2 Woodrow Wilson appeared before Congress and called for a declaration of war against Germany.

Gallipoli Campaign

With World War I having effectively settled into a stalemate in Europe, the Allies attempted to score a victory against the Ottoman Empire, which entered the conflict on the side of the Central Powers in late 1914.

After a failed attack on the Dardanelles (the strait linking the Sea of Marmara with the Aegean Sea), Allied forces led by Britain launched a large-scale land invasion of the Gallipoli Peninsula in April 1915. The invasion also proved a dismal failure, and in January 1916 Allied forces staged a full retreat from the shores of the peninsula after suffering 250,000 casualties.

Did you know? The young Winston Churchill, then first lord of the British Admiralty, resigned his command after the failed Gallipoli campaign in 1916, accepting a commission with an infantry battalion in France.

British-led forces also combated the Ottoman Turks in Egypt and Mesopotamia , while in northern Italy, Austrian and Italian troops faced off in a series of 12 battles along the Isonzo River, located at the border between the two nations.

Battle of the Isonzo

The First Battle of the Isonzo took place in the late spring of 1915, soon after Italy’s entrance into the war on the Allied side. In the Twelfth Battle of the Isonzo, also known as the Battle of Caporetto (October 1917), German reinforcements helped Austria-Hungary win a decisive victory.

After Caporetto, Italy’s allies jumped in to offer increased assistance. British and French—and later, American—troops arrived in the region, and the Allies began to take back the Italian Front.

World War I at Sea

In the years before World War I, the superiority of Britain’s Royal Navy was unchallenged by any other nation’s fleet, but the Imperial German Navy had made substantial strides in closing the gap between the two naval powers. Germany’s strength on the high seas was also aided by its lethal fleet of U-boat submarines.

After the Battle of Dogger Bank in January 1915, in which the British mounted a surprise attack on German ships in the North Sea, the German navy chose not to confront Britain’s mighty Royal Navy in a major battle for more than a year, preferring to rest the bulk of its naval strategy on its U-boats.

The biggest naval engagement of World War I, the Battle of Jutland (May 1916) left British naval superiority on the North Sea intact, and Germany would make no further attempts to break an Allied naval blockade for the remainder of the war.

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World War I Battles: Timeline

For four years, from 1914 to 1918, World War I raged across Europe’s western and eastern fronts after growing tensions and then the assassination of Archduke Franz Ferdinand of Austria ignited the war. Trench warfare and the early use of tanks, submarines and airplanes meant the war’s battles were devastatingly bloody, claiming an estimated 40 […]

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World War I Planes

World War I was the first major conflict to harness the power of planes. Though not as impactful as the British Royal Navy or Germany’s U-boats, the use of planes in World War I presaged their later, pivotal role in military conflicts around the globe.

At the dawn of World War I, aviation was a relatively new field; the Wright brothers took their first sustained flight just eleven years before, in 1903. Aircraft were initially used primarily for reconnaissance missions. During the First Battle of the Marne, information passed from pilots allowed the allies to exploit weak spots in the German lines, helping the Allies to push Germany out of France.

The first machine guns were successfully mounted on planes in June of 1912 in the United States, but were imperfect; if timed incorrectly, a bullet could easily destroy the propeller of the plane it came from. The Morane-Saulnier L, a French plane, provided a solution: The propeller was armored with deflector wedges that prevented bullets from hitting it. The Morane-Saulnier Type L was used by the French, the British Royal Flying Corps (part of the Army), the British Royal Navy Air Service and the Imperial Russian Air Service. The British Bristol Type 22 was another popular model used for both reconnaissance work and as a fighter plane.

Dutch inventor Anthony Fokker improved upon the French deflector system in 1915. His “interrupter” synchronized the firing of the guns with the plane’s propeller to avoid collisions. Though his most popular plane during WWI was the single-seat Fokker Eindecker, Fokker created over 40 kinds of airplanes for the Germans.

The Allies debuted the Handley-Page HP O/400, the first two-engine bomber, in 1915. As aerial technology progressed, long-range heavy bombers like Germany’s Gotha G.V. (first introduced in 1917) were used to strike cities like London. Their speed and maneuverability proved to be far deadlier than Germany’s earlier Zeppelin raids.

By the war’s end, the Allies were producing five times more aircraft than the Germans. On April 1, 1918, the British created the Royal Air Force, or RAF, the first air force to be a separate military branch independent from the navy or army. 

Second Battle of the Marne

With Germany able to build up its strength on the Western Front after the armistice with Russia, Allied troops struggled to hold off another German offensive until promised reinforcements from the United States were able to arrive.

On July 15, 1918, German troops launched what would become the last German offensive of the war, attacking French forces (joined by 85,000 American troops as well as some of the British Expeditionary Force) in the Second Battle of the Marne . The Allies successfully pushed back the German offensive and launched their own counteroffensive just three days later.

After suffering massive casualties, Germany was forced to call off a planned offensive further north, in the Flanders region stretching between France and Belgium, which was envisioned as Germany’s best hope of victory.

The Second Battle of the Marne turned the tide of war decisively towards the Allies, who were able to regain much of France and Belgium in the months that followed.

The Harlem Hellfighters and Other All-Black Regiments

By the time World War I began, there were four all-Black regiments in the U.S. military: the 24th and 25th Infantry and the 9th and 10th Cavalry. All four regiments comprised of celebrated soldiers who fought in the Spanish-American War and American-Indian Wars , and served in the American territories. But they were not deployed for overseas combat in World War I. 

Blacks serving alongside white soldiers on the front lines in Europe was inconceivable to the U.S. military. Instead, the first African American troops sent overseas served in segregated labor battalions, restricted to menial roles in the Army and Navy, and shutout of the Marines, entirely. Their duties mostly included unloading ships, transporting materials from train depots, bases and ports, digging trenches, cooking and maintenance, removing barbed wire and inoperable equipment, and burying soldiers.

Facing criticism from the Black community and civil rights organizations for its quotas and treatment of African American soldiers in the war effort, the military formed two Black combat units in 1917, the 92nd and 93rd Divisions . Trained separately and inadequately in the United States, the divisions fared differently in the war. The 92nd faced criticism for their performance in the Meuse-Argonne campaign in September 1918. The 93rd Division, however, had more success. 

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With dwindling armies, France asked America for reinforcements, and General John Pershing , commander of the American Expeditionary Forces, sent regiments in the 93 Division to over, since France had experience fighting alongside Black soldiers from their Senegalese French Colonial army. The 93 Division’s 369 regiment, nicknamed the Harlem Hellfighters , fought so gallantly, with a total of 191 days on the front lines, longer than any AEF regiment, that France awarded them the Croix de Guerre for their heroism. More than 350,000 African American soldiers would serve in World War I in various capacities.

Toward Armistice

By the fall of 1918, the Central Powers were unraveling on all fronts.

Despite the Turkish victory at Gallipoli, later defeats by invading forces and an Arab revolt that destroyed the Ottoman economy and devastated its land, and the Turks signed a treaty with the Allies in late October 1918.

Austria-Hungary, dissolving from within due to growing nationalist movements among its diverse population, reached an armistice on November 4. Facing dwindling resources on the battlefield, discontent on the homefront and the surrender of its allies, Germany was finally forced to seek an armistice on November 11, 1918, ending World War I.

Treaty of Versailles

At the Paris Peace Conference in 1919, Allied leaders stated their desire to build a post-war world that would safeguard itself against future conflicts of such a devastating scale.

Some hopeful participants had even begun calling World War I “the War to End All Wars.” But the Treaty of Versailles , signed on June 28, 1919, would not achieve that lofty goal.

Saddled with war guilt, heavy reparations and denied entrance into the League of Nations , Germany felt tricked into signing the treaty, having believed any peace would be a “peace without victory,” as put forward by President Wilson in his famous Fourteen Points speech of January 1918.

As the years passed, hatred of the Versailles treaty and its authors settled into a smoldering resentment in Germany that would, two decades later, be counted among the causes of World War II .

World War I Casualties

World War I took the lives of more than 9 million soldiers; 21 million more were wounded. Civilian casualties numbered close to 10 million. The two nations most affected were Germany and France, each of which sent some 80 percent of their male populations between the ages of 15 and 49 into battle.

The political disruption surrounding World War I also contributed to the fall of four venerable imperial dynasties: Germany, Austria-Hungary, Russia and Turkey.

Legacy of World War I

World War I brought about massive social upheaval, as millions of women entered the workforce to replace men who went to war and those who never came back. The first global war also helped to spread one of the world’s deadliest global pandemics, the Spanish flu epidemic of 1918, which killed an estimated 20 to 50 million people.

World War I has also been referred to as “the first modern war.” Many of the technologies now associated with military conflict—machine guns, tanks , aerial combat and radio communications—were introduced on a massive scale during World War I.

The severe effects that chemical weapons such as mustard gas and phosgene had on soldiers and civilians during World War I galvanized public and military attitudes against their continued use. The Geneva Convention agreements, signed in 1925, restricted the use of chemical and biological agents in warfare and remain in effect today.

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