Core Viewpoint - The article commemorates the 75th anniversary of the Chinese People's Volunteer Army's participation in the Korean War, highlighting their sacrifices and victories in defending peace and resisting aggression [1][23]. Group 1: Historical Significance - The Chinese People's Volunteer Army crossed the Yalu River 75 years ago, fighting alongside the Korean people and military for nearly three years to achieve a significant victory in the Korean War [1]. - The Anti-American Aid Korea Memorial Hall in Dandong, Liaoning, is the only museum dedicated to showcasing the history of the Chinese People's Volunteer Army and the Korean War, housing over 20,000 artifacts that narrate this historical period [1]. Group 2: Cultural Impact - The song "The Song of the Chinese People's Volunteer Army," which became an anthem for the military, reflects the soldiers' determination and spirit during the war [1][2]. - The creation of a Huqin (a traditional Chinese instrument) from materials sourced in Korea and China symbolizes the cultural resilience and morale of the troops amidst the harsh realities of war [14][15]. Group 3: Military Achievements - The article recounts the heroic actions of the Volunteer Army, such as the successful defense against overwhelming enemy forces at the Shangganling (Battle of Triangle Hill), where they endured heavy bombardment and fought for 43 days [19]. - The signing of the Korean Armistice Agreement on July 27, 1953, marked a significant victory, with the announcement celebrated in the "Volunteer Army" newspaper, emphasizing the sacrifices made by the soldiers [22][23].