High Quality Content by WIKIPEDIA articles! The Singapore Armed Forces has a unified rank structure, with identical rank names and insignia for Officer, Warrant Officers, Specialists, and enlisted men throughout the Army, Navy, and Air Force. Only two exceptions exist to the unified rank structure. Firstly, among the flag officer ranks, the Navy retains the Admiral ranks. Other traditional Navy ranks such as Ensign and Commander have been replaced with Army-style ranks. The second exception is for the rank insignia for Private and Private First Class between the Air Force, and the Army and Navy. Unlike most Commonwealth countries, the armed forces of Singapore no longer use British-style rank insignia nor many British rank titles. Company officers are represented by bars, field officers by coats-of-arms (nicknamed "crabs")and flag and general officers are represented by stars, similar to the systems of the Republic of China, South Korea, and (in particular) Indonesia for example.American influence is obvious in relation to the existence of two Rear Admiral ranks.