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7.2 Causes of World War I

6 min readjanuary 23, 2023

VladimirGenkovski

VladimirGenkovski

Jed Quiaoit

Jed Quiaoit


AP World History: Modern 🌍

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Interestingly, World War I - more commonly known as the Great War for Empires back then - was sparked by multiple causes, including an immediate cause that served as the final spark igniting European escalation. These causes can be best summarized using the acronym MANIA with each individual component highly interconnected to the rest of the puzzle. Quite a fitting word to encapsulate WWI, don’t you think?

Militarism

Remember that AP World History: Modern loves using technical historical terms to describe key ideas and trends. Look at the root word: military. Militarism refers to the glorification of military power and the build-up of a country’s arms and firepower to outpace neighboring nations in military might. Industrialization further intensified this process as each nation produced vast arsenals of deadly weapons ranging from mustard gas to flamethrowers within a span of months or years, not decades.
This process can be traced to the 19th century, with Germany implementing universal conscription in the 1860s. The growth of militaries continued on with the three consequent German naval laws between 1898 and 1912, which expanded the German navy. By the early 1910s, Great Britain and Germany began competing in a naval build-up. After Germany was successful in building enough Dreadnoughts (battleships) to make a fleet, the British ordered the production of twice as many battleships as a countermeasure to prevent the Germans from invading them. The back-and-forth increase in military expenditures and weapons between the two raised fears of a massive conflict in Europe. On top of all, in 1913, France implemented a 3-year military service law.
By 1914, anxiety loomed over the entirety of Europe, and all European powers are ready for war as the world held its breath on what’ll happen next.
It should also be noted that European powers had already been thinking about attacking each other, as seen by the Schlieffen Plan of 1905. Germany believed that they could trespass Belgium and defeat France in the span of a few hours or days because the country would have been unprepared for this abrupt attack.
https://firebasestorage.googleapis.com/v0/b/fiveable-92889.appspot.com/o/images%2FMap-Schlieffen-Plan-5PTZiWiAlwX1.webp?alt=media&token=0a66f9c4-0b5a-4163-ac84-3c36419fcc83

Schileffen Plan. Image courtesy of Encyclopedia Britannica.

Alliances

Unlike continents with fewer countries like North America, European states have been historically after each other's throats due to their close proximity. As a result, the pecking order has often shifted throughout time. Dominant powers changed most notably from Rome back in the Classical era to Spain and Portugal in the Age of Exploration to Britain as the birthplace of the Industrial Revolution; therefore, political stability on a regional scale for long periods is nearly impossible.
To avoid constant worries about invasions from all sides and tip the balance of power to their favor, nations established alliances with their neighbors. Alliances not only offered guaranteed safety and protection from member states but also stimulated trade between them. By World War I, Europe was defined by two major alliances:
Triple Alliance
Triple Entente
Austria-Hungary, Germany, Italy / Ottoman Empire*
Britain, France, Russia
*As the war progressed, Italy exited the alliance but was quickly substituted with the weakening Ottoman Empire
Theoretically, the alliance system prevented nations from making reckless actions at the risk of incurring the wrath of the entire alliance, but an event that’ll be explored shortly will begin a domino effect... and entangle alliance members to the developing conflict.

Nationalism

Imagine watching a football game, and the team you’re rooting for wins two or even three games in a row. Have you ever gotten the feeling that said team will be unstoppable for the rest of the season? If yes, then you have an understanding of what nationalism is.
Growing nationalist sentiment fed fuel to the torch of militarism and the desire to use weaponry to expand the glory of the state and its people. Nationalism destabilized ethnically diverse nations such as Austro-Hungary, the Ottoman Empire, and Serbia as certain ethnic groups within the state clamored for an independent country consisting of their people and only their people, completely separate from the rest of the bunch whom they considered different. Hint, hint: this is the direct motivation behind the last reason on this list.
Take, for example, the Balkan Wars of 1912-1913. They were a result of the conflicting nationalist objectives between the countries in the region. Being under Ottoman rule for the past centuries, they wanted to restore their historic lands whose borders were not universally agreed upon. The alliances those countries joined were determined by the states that backed their nationalist desires--Bulgaria, for instance, was assured by Germany that its wishes will be supported both financially and militarily. Serbia, on the other hand, was backed by Russia, hence the countries' new alliances (as seen in the table at the bottom of the article).

Imperialism

Ah, good ‘ol imperialism persisting through history. It is undoubtedly one of the main causes of World War I. Even with the risk of endangering alliances and bloodshed, nothing beats the yearning for expanding and gaining resources abroad, preferably not in Europe.
The scramble for colonies in Africa destroyed the balance of power established by the Congress of Vienna (convened after Napoleon’s defeat to divide up the lands he conquered and devise a stable territorial layout with everyone’s agreement) as some European nations acquired more overseas territories than others. As some European nations acquired more overseas territories than others, tensions between these countries began to rise. Imperialism led to increased competition between the major European powers and a desire for territorial expansion and economic gain. While imperialism did not immediately cause the war, it is the medium that caused the Great War to become a true World War. The colonial territories that European powers had acquired around the world became a theater of war, with battles fought in Africa, Asia and the Pacific, as well as in Europe.
https://image.pbs.org/poster_images/assets/75716.JPG

Source: PBS Media Library

This is a political cartoon representing the Congress of Vienna. Try to analyze this document like it's in your DBQ to practice for the exam! If you can't analyze it, try reading the article above and read PBS' interpretation of the political cartoon!

Archduke’s Assassination

It was a sunny day on June 28, 1914, when Austro-Hungarian archduke Franz Ferdinand was assassinated while parading at Sarajevo, Condominium of Bosnia and Herzegovina (Balkan state), Austria-Hungary with his wife. The perpetrator of the bold and heinous crime was Gavrilo Princip, a Serbian nationalist who is part of a terrorist group called the Black Hand. Its ultimate goal is to create an independent Serb state, and eliminating the archduke supposedly is the first step towards achieving that purpose, as the Archduke was the heir to the Austro-Hungarian throne.
Unfortunately, things only further went downhill from this point. Angered by the archduke’s death, Austria-Hungary, backed by Germany, demands Serbia to hand over Princip and his co-conspirators alongside nine other unreasonable requests, with some alluding to the nation’s desire to take over the Balkans. After Serbia declined to comply, Austria-Hungary declared war. Neighboring Russia--a Serbian ally--then mobilized its forces. When it ignored Germany’s demands to stop, the Germans finally joined the fray on Austria-Hungary’s side.
 
Great Britain sided with Russia and Serbia after Germany invades Belgium (British territory) to get to a fully-mobilized France. Japan, through its military alliance with the British, joined the war on their side weeks later. The Ottoman Empire, the United States, and other European states followed suit much later on. By the end of 1917, the following major players, alongside many others, fought for their respective sides:
Allied Powers
Central Powers
Britain
France
Italy
Japan
Russia
Serbia
United States
Austria-Hungary
Bulgaria
Germany
Ottoman Empire
Activity 2: Order Matters! See if you can order the following World War I events from the earliest to the latest! (A for earliest, E for latest)
______    Austria-Hungary declares war on Serbia
______    Germany declares war on Russia
______    Archduke Franz Ferdinand is assassinated
______    Germany invades Belgium
______    Great Britain enters the war on the Allies’ side

ANSWERS - Activity 2: Order Matters!

B Austria-Hungary declares war on Serbia
C Germany declares war on Russia
A Archduke Franz Ferdinand is assassinated
D Germany invades Belgium
E Great Britain enters the war on the Allies’ side
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