The term "Liberation Army" often refers to military groups that aim to free a nation or region from oppression or foreign control. These groups typically engage in armed conflict and may be involved in political movements advocating for social justice, independence, or self-determination. One notable example is the People's Liberation Army (PLA) of China, which was established in 1927 and played a crucial role in the Chinese Civil War. The PLA is now the armed forces of the People's Republic of China and is involved in various domestic and international missions, including defense and peacekeeping operations.