Long ago, a big fight started in Europe. 
Long ago, a big fight started in Europe. 

In mid-1914, a series of events led to World War I. 
Austria-Hungary wanted to punish Serbia after the killing. They wanted to show their strength. Before acting, Austria-Hungary asked Germany for help. Germany gave them a "blank cheque." This meant Germany promised to support them in a fight. 
Many countries had made alliances. An alliance is a promise to help a friend. Russia was a supporter of Serbia. France also agreed to help Russia. Because of these deals, a small fight grew very fast.
Russia began to get its army ready. This made Germany very nervous. Britain also joined the war in early August. They did this because they feared Germany would take over France. Soon, most major powers in Europe were at war. The killing of one leader had changed the whole world.
The July Crisis was a series of fast events in mid-1914. These events involved many powerful countries in Europe. This period led directly to the start of World War I. 
After the killing, leaders in Austria-Hungary felt they must act. They wanted to punish Serbia to show their own strength. 

While leaders talked, many countries were making their own plans. France and Russia met to confirm their alliance. They agreed to help Serbia if a war started. 
Different people had very different ideas about what to do. In Austria-Hungary, some leaders like Conrad von Hötzendorf wanted war right away. 

By early August, the original reason for the trouble was almost forgotten. The focus had shifted to a much larger conflict. 

The July Crisis was a period of intense diplomatic and military tension in mid-1914. It involved the major powers of Europe. These events led directly to the start of World War I.
The crisis began on June 28, 1914, in Sarajevo. This city was the provincial capital of Bosnia and Herzegovina. At that time, Bosnia was occupied by the Austro-Hungarian Empire. 
Following the assassination, the leaders of Austria-Hungary debated how to respond. Foreign Minister Leopold Berchtold and Chief of Staff Conrad von Hötzendorf wanted action. 

Austria-Hungary was worried about how Russia would react to their actions. Russia was a major supporter of Serbia. To manage this risk, Vienna sought a guarantee from its ally, Germany. On July 5, Germany provided what became known as the "blank cheque." 
The mechanism of escalation moved through several distinct stages. First, Austria-Hungary issued a harsh ultimatum to Serbia on July 23. This document contained demands that Serbia was almost certain to reject. Second, Russia began preparing its military for war. 
The crisis reached a breaking point in early August 1914. By this time, the original assassination had become a side-note to the larger conflict. Germany's military strategy involved the Schlieffen Plan. 
The July Crisis shows how interconnected the world was in 1914. A single act of political violence in one city triggered global military movements. The crisis was not caused by one single person or event. Instead, it was the result of long-standing alliances and military plans. These systems were designed to respond to threats with rapid force. When the crisis began, these systems could not be stopped. The rapid mobilization of armies made diplomacy almost impossible. This period serves as a major study in how political instability can escalate through international systems.
🖼️ Images & Media (27)
+ 15 more
More to explore
✨ What else?
Related topics you might enjoy
🔬 Go deeper
More advanced topics to explore
🪜 Step back
Simpler topics to build understanding
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.