Liberals view human beings as innately good and believe peace and harmony between nations is not only achievable, but desirable. Immanuel Kant developed the idea in the late eighteenth century that states that shared liberal values should have no reason for going to war against one another. In Kant’s eyes, the more liberal states there were, the more peaceful the world would become, since liberal states are ruled by their citizens and citizens are rarely disposed to desire war. This is in contrast to the rule of kings and other non-elected rulers (who today we may call dictators or autocrats), who frequently have selfish desires out of step with citizens and are typically quicker of mind to make decisions that would send ordinary people into danger. Kant’s ideas have resonated and continue to be developed by liberals, most notably in the democratic peace theory which posits that democracies do not go to war with each other – for the very reasons Kant outlined. To take this idea further, the theory argues that the more democracies there are, the more peace there will be in the international........

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