Final answer:
Nationalism played a significant role in the political system of fascism, emphasizing a unified nation based on shared blood, history, and culture.
Step-by-step explanation:
Fascism, a political system embraced by Italy, Germany, and Spain in the 1930s, placed a significant emphasis on nationalism. Nationalism played a crucial role in the ideology and actions of fascists who sought to create a unified nation based on shared blood, history, and culture. Fascists believed that the nation was the ultimate entity and that citizens should prioritize its interests above all else. Nationalism in fascism included the glorification of the nation, the promotion of racial purity, and the suppression of perceived enemies or dissenters.