Final answer:
The factors of imperialism, alliances, and nationalism contributed to the start of World War One, with examples including the competition for colonies, the system of alliances, and rise of nationalistic sentiments.
Step-by-step explanation:
The factors of militarism, alliances, imperialism, nationalism, and ethnic groups contributed to the start of the First World War. Three of these factors that had significant impacts were imperialism, alliances, and nationalism. Imperialism, where countries sought to expand their empires and control colonies, led to increased competition and tensions between major powers. For example, the rivalry between Britain and Germany over colonies in Africa and Asia contributed to the growing tensions in Europe.
Alliances were another key factor. The system of alliances that formed in Europe created a complex web of obligations and commitments. An attack on one country would trigger a chain reaction of alliances, dragging multiple nations into the conflict. The most significant alliance was the Triple Entente (France, Russia, and the UK) and the Central Powers (Germany, Austro-Hungary, and later, the Ottoman Empire). When the assassination of Archduke Franz Ferdinand of Austria-Hungary by a Serbian nationalist occurred, it triggered a series of alliances and escalations that ultimately led to the outbreak of World War One.
Nationalism also played a crucial role. Nationalistic sentiments and desires for self-determination were strong in many European countries. This led to heightened tensions and rivalries between different ethnic groups and nations. For example, the rise of Pan-Slavism, a movement that aimed to unite all Slavic peoples, contributed to the conflict in the Balkans. The assassination of Archduke Franz Ferdinand, who was heir to the Austro-Hungarian throne, by a Serbian nationalist demonstrated the power of nationalist sentiments and sparked a crisis between Austria-Hungary and Serbia.
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