Rank insignia are symbols or badges worn on uniforms to indicate a person's rank or position within a military or organizational hierarchy. These insignia can vary in design, color, and placement depending on the specific branch of service or organization, such as the U.S. Army or NATO forces. They help to quickly identify the authority and responsibilities of individuals in a structured environment. Typically, rank insignia are displayed on the shoulders, sleeves, or collars of uniforms. They can include stripes, stars, or other shapes that represent different levels of rank, such as private, sergeant, or captain. Understanding these insignia is essential for maintaining order and discipline within the ranks.