20 Historical Figures Who Shaped The Course of World War I
Published: 21 August 2025
By Patrick Nichols
via The Scroller website

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This list looks at 20 key figures who played major roles during the war, whether in government offices, on the battlefield, or behind closed doors. Understanding who they were and what they did offers a clearer picture of the past and how the world unfolded.
Their stories are a reminder that history often turns on the choices of a few. Here are 20 historical figures who shaped the course of World War I.
1. Archduke Franz Ferdinand
His assassination was the spark that set off the powder keg that was WWI. It set a domino of alliances into motion, plunging Europe into war. His untimely death forever tied a personal tragedy to a global catastrophe.
2. Gavrilo Princip
Gavrilo Princip was the young nationalist who made the fatal shot that triggered the war. His act of radicalism shows how one individual's actions can ignite a massive geopolitical war.
3. Kaiser Wilhelm II
Germany's last emperor believed in building up the military and expanding the empire, which pushed other countries away and made enemies feel threatened. His unpredictable actions and strong support for Austria-Hungary helped lead Europe into war.
4. Woodrow Wilson
At first, President Wilson wanted the U.S. to stay out of the war, but in 1917, he decided to join to help protect democracy. After the war, he pushed for ideas like the League of Nations, which changed how countries worked together.
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