The Ninety-First Division, also known as the 91st Infantry Division, is a unit of the United States Army. It was established during World War I and has a rich history of service in various conflicts, including World War II and the Vietnam War. The division is recognized for its distinctive shoulder patch, which features a blue and gold design. Throughout its history, the Ninety-First Division has been involved in numerous military operations, contributing to the success of American forces. The division is known for its resilience and adaptability, reflecting the dedication of its soldiers in fulfilling their missions across different theaters of war.