Ultra-nationalism is a political ideology that emphasizes extreme loyalty and devotion to one's nation, often placing it above all other interests. This belief can lead to the idea that one's nation is superior to others, fostering a sense of pride that can sometimes turn into hostility towards foreign nations or groups. Ultra-nationalists may advocate for strict immigration policies, cultural homogeneity, and the preservation of national identity. This ideology can manifest in various forms, including fascism or ethnic nationalism, and is often associated with movements that seek to promote national sovereignty at the expense of global cooperation.