The "West Army" refers to a military force that operates in the western region of a country or area. This term can apply to various historical and contemporary military units, often tasked with defending territory, conducting operations, or maintaining peace. The specific structure and purpose of a West Army can vary depending on the nation and its strategic needs. In some contexts, the West Army may be associated with specific conflicts or military campaigns. For example, during the American Civil War, the term was used to describe Union forces in the western theater. Additionally, the concept can also relate to modern military alliances, such as those formed by NATO member countries in the western hemisphere.