The concept embodies the right of a people or nation to freely decide its own political status and to freely pursue its economic, social, and cultural development. It asserts that populations sharing common characteristics, such as language, culture, or history, have the inherent authority to govern themselves without external interference. A prominent example is the dissolution of colonial empires in the 20th century, where various territories sought and achieved independence, forming new nations based on their own aspirations and governance structures.
This principle has profoundly shaped the geopolitical landscape, serving as a catalyst for both the formation of new states and the reshaping of existing ones. Its implementation has been viewed as essential for promoting peace and stability, as it allows groups to address their grievances and pursue their interests through legitimate channels. Historically, it has been a cornerstone of international law and a guiding principle for organizations seeking to resolve conflicts and promote human rights, though its application has often been complex and contested.