"Unknown Soldiers" refers to unidentified military personnel who died in battle and whose remains were never identified. These soldiers are often honored in memorials and cemeteries, symbolizing the sacrifices made by all service members. The concept emphasizes the idea that many brave individuals fought for their countries without recognition. In many countries, including the United States, there are dedicated tombs for Unknown Soldiers, such as the Tomb of the Unknown Soldier in Arlington National Cemetery. These sites serve as a poignant reminder of the cost of war and the importance of remembering those who served, even if their identities remain unknown.