Which aspect of nationalism became more prominent in the late 19th century?

The late 19th century witnessed a significant rise in nationalism characterized by heightened competition and conflict among nations. This period was marked by the unification of countries such as Germany and Italy, which exemplified how nationalism could mobilize populations and facilitate political change. National pride surged as countries vied for power, prestige, and resources, leading to aggressive foreign policies and militarization. Events like the scramble for Africa and the buildup to World War I were heavily influenced by nationalist sentiments, as nations sought to assert dominance over one another. The fierce competition for colonies and influence led to alliances and rivalries that further escalated tensions, showcasing how nationalism, rather than promoting unity, often exacerbated divisions between nations.