How did the trend toward nationalism, militarism, and imperialism lead to the start of world war i?

I hope I can help! :)

I will show why each one of them lead to the start of World War I!

·Imperialism was a cause because building an empire needs manpower such as an army and a navy to conquer and keep the land that they colonised.

·Nationalism was a great cause of World War one because of countries being greedy and not negotiating. Nationalism shows you are proud of your country and want it to be the best.
A lot of causes all linked back to countries all wanted to be better than each other. Nationalist groups in Austria-Hungary and Serbia wanted independence. France wanted Alsace Lorraine back from Germany who was lost in 1871 Franco-Prussian war.
The use of Nationalism gave nations false hope and aggressive to win the war. Even if they weren’t able to win a war due to their strength and understanding of plans and leaders. 
As you can see Nationalism had made a big dent in Countries understanding and strength of war. Also how different countries wanted land to help their plan succeed in winning the war.

·Imperialism: Nationalism lead to Imperalism. One of the most significant causes of World War one was Imperialism, which is where a system where powerful nation rules and exploits one or more colonies. There are two main crisis’s that occurred in Morocco in 1905 and 1911. In 1905, Kaiser visited Morocco in North Africa, where Germany was building up its own Empire. An international conference was held in 1906.
At the conference Kaiser was humiliated, this made him fill with rage because he wanted to be seen as Major power in Africa. Instead, he was treated as if he had no right in speaking at the conference that was made global news.
In 1911, France tried to take over Morocco again. Britain feared that Kaiser wanted to set up a naval base in Agadir. Another conference was held and the British and French stood up against Germany once again. France took control of Morocco and Germany was given land in central Africa as an act of compensation. 
These two events lead directly to Militarism. This was a significant cause of World War one because Kaiser was humiliated and could have felt determined to fight Britain and France earlier as an act of Revenge. Also, at the time he would have been more hostile.

·Militarism: Caused by the two events in Imperialism. It could have caused the war due to the naval and arms race. The main event of Militarism causing World War one was the naval rivalry which was made after 1900. Britain had the most powerful navy in the world. The new Keiser Wilhelm announced his intention to build a bigger German navy than Britain. Britain felt very threatened by this. Germany’s navy was much smaller than Britain’s navy but the British army was put all over its colonies so they can be protected. Germany didn’t have a big Empire like Britain but most people agreed, at the time, they were the best trained and the most powerful. The Kaiser felt he needed a bigger navy than Britain to protect its country.
While Britain and Germany built up their navies, the major powers on mainland Europe were also building up their armies. The problem for Germany was that if the war broke out they would have to fight both Russia and France at the same time. The Germans then came up with the Schlieffen Plan.
On the other hand, Russia could put millions onto the fields and France had a plan of attack which was to change across the frontier and attack deep into Germany, forcing surrender. Britain and France were working closely together with commanders which meant their military plans were designed to achieve quick victory. The British navy knew the cost of the war would lead to an economic collapse on the enemy. Overall, if countries have a big army, enough resources and a great navy they would be ready for conflict.

Have a great day/evening/night! :)
Let me know if you have any additional questions!
-Kappifilms

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