Final answer:
The Great War changed the world by shifting power dynamics, introducing modern warfare techniques, and establishing lack of postwar collaboration between democratic nations as the norm.
Step-by-step explanation:
The Great War, also known as World War I, had several significant impacts on the world. One way it changed the world was by changing the distribution of power among the superpowers in Europe and the Americas. This can be seen in the decline of the European powers and the rise of the United States as a major global player.
Another way the Great War changed the world was by introducing modern warfare techniques and weaponry, which drastically increased casualties. The use of trench warfare, tanks, and chemical weapons had a devastating impact on soldiers and civilians alike.
Lastly, the Great War established the norm of lack of postwar collaboration between democratic nations. The Versailles Treaty, which ended the war, imposed harsh conditions on Germany and set the stage for future conflicts.
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