WW1

• Economic Competition : The European powers restricted the import of goods to protect their industrial development
• Colonial Competition : The European powers competed for overseas colonies to get markets and resources
• Armaments Race : The European Powers competed in expanding armies to protect their national security and overseas interests
• Alliance System : The Triple Alliance and Triple Entente was formed
• Extreme nationalism :the desire of people of the same race and culture to govern themselves, territorial expansion to gain national glory
• Balkan Wars : Serbia, Bulgaria, Montenegro and Greece formed a league and declared war on the Ottoman Empire, which they won
• Sarajevo assassination incident : Archduke Franz Ferdinand was killed by Princip from Serbia
• Ultimatum : Austria-Hungary sent it to Serbia and demanded they reply to it within 48 hours