Final answer:
Nationalism is the intense pride in and devotion to one's country, fueling competition, militarism, and imperialist ambitions.
Explanation:
Nationalism is the intense pride in and devotion to one's country, fueling competition, militarism, and imperialist ambitions. It can unify a nation but also lead to rivalry and resentment towards others. During World War I, the rise of resentful feelings towards non-native citizens was a manifestation of nationalism taking on a darker tone.
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