How did Nationalism led major conflicts following world war 1 especially when?

Answer 1

Nationalism after World War I fueled intense rivalries as nations sought power, territory, and revenge. It especially escalated during the 1930s, leading to conflicts like World War II.

Answer 2

Following World War I, nationalism fueled major conflicts as newly formed nation-states sought to assert their identities and territorial claims, often at the expense of ethnic minorities and neighboring countries. The Treaty of Versailles redrew borders and created new nations, leading to tensions in regions like Eastern Europe and the Balkans, where various ethnic groups sought self-determination. This rise in nationalist sentiment contributed to conflicts such as the Polish-Soviet War and the irredentist claims in the Balkans, ultimately sowing the seeds for World War II. Nationalist ideologies also fostered resentment and revanchism, particularly in Germany, which contributed to the rise of fascism and militarism.