Liberalism and nationalism
The relationship between liberalism and nationalism is a significant subject of study in political science and intellectual history, examining how individual rights and collective identity have interacted since the 19th century. While initially aligned as "twin ideologies" during the era of nation-state formation and revolutions against absolute monarchies, their interaction has evolved into various distinct branches, ranging from civic inclusion to conservative preservation.
Source: Wikipedia — Liberalism and nationalism (CC BY-SA 4.0)