National Liberation Movements refer to organized efforts by groups of people within a colonized or oppressed nation to gain independence, self-determination, and political sovereignty. These movements often arise in response to colonialism or foreign domination and aim to establish a nation-state that reflects the cultural and historical identity of the people. In the context of shifting power dynamics after 1900, these movements became significant as they challenged imperial powers and led to the formation of new nations across Africa, Asia, and Latin America.