# data[].attributes.body
Militarism is the policy of glorifying military power and keeping an army prepared for war. It is often described as an "arms race" meaning the race to achieve the most weapons.

# data[].attributes.body
In WW1, countries built up and expanded their armies and navies gravely, it was a race to who could take over the most land and create the most weapons.

# data[].attributes.body
Some examples of militarism in WW1 are Great Britain, Russia and Germany. Britain and Germany's navy was expanded a lot during the war. Adding to that, Germany and Russia's military started to influence the people of their countries.

# data[].attributes.body
Alliances are when countries make mutual agreements that they won't attack one another and will work together to fight the enemy.

# data[].attributes.body
In WW1, there were two major alliances included in the war the Triple Alliance which consisted of Germany, Austria-Hungary, and Italy, and the Triple Entente, which included England, France, and Russia, Before WW1, these alliances existed:

Russia and Serbia

Germany and Austria-Hungary

France and Russia

Britain and France

# data[].attributes.body
Austria-Hungary declared war on Serbia. Serbia and Russia had an alliance. Russia was then dragged into the war. When Germany saw that, (because Austria-Hungary had an alliance with Germany and Russia had one with Serbia) Germany declared war on Russia. France was dragged in because France had an alliance with Russia so they were against Austria-Hungary and Germany. Then when Germany attacked France through Belgium, brought Britain into the war. Now because Britain and Japan had an alliance, then Japan entered the war. Later it was followed by the United States and Italy.

# data[].attributes.body
Imperialism is when a country increases their power and wealth by bringing additional territories under their control.

# data[].attributes.body
Before WW1, parts of countries were under the control of the European countries, this led to a lot of confrontation during WW1. Making war more heated and more intense.

# data[].attributes.body
European countries owned parts of countries like Africa and Asia, for example, Great Britain owned the entire country of India and the whole continent of Australia. Countries like France owned a good majority of modern-day Africa as well.

# data[].attributes.body
Identification with one's nation and support for its interests, especially to the exclusion or detriment of the interests of other nations.

# data[].attributes.body
In WW1, the reason nationalism was so important was because of the one thing that countries keep at the top of their list of priorities, their reputation and their glory. Nationalism made the nations tense with each other. Often,  competitions would break out and one country always had to be superior to the others. These beings some of the leading causes of WW1.

# data[].attributes.body
An immediate reason for the cause of WW1 was because of the nationalism in Serbia when a Serbian nationalist, Gavrilo Princip, assassinated  Archduke Ferdinand of the Austro-Hungarian Empire. Which set off the whole war in itself.