How might WW1 have affected future international relations?

Explanation:

World War I has aptly been called a war of illusions that exposed in sharp relief all the follies of the prewar generation. The war plans of the generals had misfired at once, and expectations that the intensity of modern firepower would serve the offense, or that the war must be brief, proved horribly false. Germany expected to achieve hegemony in Europe as a step toward world power, and instead world powers were called into play to prevent hegemony in Europe. Socialists thought war would bring general strikes and revolution, and instead the war inspired patriotic national unity. Monarchists hoped war would bolster the old regimes, and instead it cast down the remaining dynasties of eastern Europe.

So The Allied Powers might stay allied and help out one another

Germany would live with this burden forever

Explanation:

World War I began in 1914 after the assassination of Archduke Franz Ferdinand and lasted until 1918. During the conflict, The Central Powers (Germany, Austria-Hungary, Bulgaria and the Ottoman Empire) fought against Great Britain, France, Russia, Italy, Romania, Japan and the United States (the Allied Powers). Thanks to new military technologies and the horrors of trench warfare, World War I saw unprecedented levels of carnage and destruction. By the time the war was over and the Allied Powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.