Corporal is a military rank in use by the armed forces of many countries. It is also a police rank in some police services. The rank is usually the lowest ranking non-commissioned officer. In some militaries, the rank of corporal nominally corresponds to commanding a section or squad of soldiers.
Staff sergeant is a rank of non-commissioned officer used in the armed forces of many countries. It is also a police rank in some police services.
Sergeant major is a senior non-commissioned rank or appointment in many militaries around the world.
Senior Chief Petty Officer(SCPO) is an enlisted rank in the navies of some countries.
The chart below represents the current enlisted rank insignia of the United States Air Force.
Officer Cadet is a rank held by military cadets during their training to become commissioned officers. In the United Kingdom, the rank is also used by members of University Royal Naval Units, University Officer Training Corps and University Air Squadron; however, these are not trainee officers with many not choosing a career in the armed forces.
Modern Russian military ranks trace their roots to the Table of Ranks established by Peter the Great. Most of the rank names were borrowed from existing German/Prussian, French, English, Dutch, and Polish ranks upon the formation of the Russian regular army in the late 17th century.
Officer candidate or officer aspirant (OA) is a rank in some militaries of the world that is an appointed position while a person is in training to become an officer. More often than not, an officer candidate was a civilian who applied to join the military directly as an officer. Officer candidates are, therefore, not considered of the same status as enlisted personnel.
The comparative military ranks of Korea are the military insignia used by the two nations on the Korean Peninsula, those being the Republic of Korea Armed Forces and the Korean People's Army of the Democratic People's Republic of Korea. The United States Forces Korea personnel wear the ranks and insignia used by other service personnel of the United States Armed Forces in the territories of the United States.
The military ranks of Finland are the military insignia used by the Finnish Defence Forces. The ranks incorporate features from the Swedish, German, and Russian armed forces. In addition, the system has some typically Finnish characteristics that are mostly due to the personnel structure of the Finnish Defence Forces. The ranks have official names in Finnish and Swedish languages and official English translations. The Swedish forms are used in all Swedish-language communications in Finland, e.g. in Swedish-speaking units of the Finnish Defence Force. The system of ranks in the Swedish Armed Forces is slightly different.
Before Unification as the Canadian Armed Forces in 1968, the Canadian military had three distinct services: the Royal Canadian Navy, the Royal Canadian Air Force, and the Canadian Army. All three services had a Regular (full-time) component and a reserve (part-time) component. The rank structure for these services were based on the services of the British military, the Royal Navy, the Royal Air Force, and the British Army. The change to a "Canadian" rank structure meant that many of the traditional (British) rank titles and insignia were removed or changed.
Vietnamese military ranks and insignia were specified by the National Assembly of Vietnam through the Law on Vietnam People's Army Officer on 30 December 1981.
The ranks in the Israel Defense Forces (IDF) reflect an individual's level in the military.
Specialist is a military rank in some countries' armed forces. Two branches of the United States Armed Forces use the rank. It is one of the four junior enlisted ranks in the United States Army, above private (PVT), private (PV2), and private first class and is equivalent in pay grade to corporal; in the United States Space Force, four grades of specialist comprise the four junior enlisted ranks below the rank of sergeant.
The Indonesian National Armed Forces (TNI) uses a simplified ranking system for the three branches of Indonesian Army, Indonesian Navy and Indonesian Air Force. Most of the ranks are similar with differences for the rank titles of the high-ranking officers. Exception exists, however, in the ranks of the service members of the Indonesian Marine Corps. While Indonesian Marine Corps is a branch of the Navy, the rank titles of the Marine Corps are the same as those of the Army, but it still uses the Navy's style insignia.
The military ranks of the Armed Forces of Ukraine (AFU) were established on March 1992, when Ukraine adopted the Law on Military Duty and Military Service 1992.
The rank insignia of the federal armed forces of the Federal Republic of Germany indicate rank and branch of service in the German Army, German Air Force, or the German Navy.
The system of Vietnamese military ranks was originally introduced on 22 March 1946 by President Ho Chi Minh, originally based on the military ranks system of Japanese military. Reference designs to the military ranks system of the French military. In 1958, the Vietnam People's Army military ranks system was changed, and has no Marshal or General of the Army or Brigadier General. In contrast, the Colonel General, Senior Colonel or Senior Lieutenant in Vietnam at present do not exist in many countries.
The Military ranks of Syria are the military insignia used by the Syrian Armed Forces. The Syrian military ranks use a rank structure similar to that of the British Armed Forces and the French Armed Forces. Commissioned officers' rank insignia are identical for the army and air force. These are gold on a bright green or black shoulder board for the army and gold on a bright blue board for the air force. Officer ranks are standard, although the highest is the equivalent of Colonel General, a rank held in 1986 only by the commander in chief and the minister of defense. Navy officer rank insignia are gold stripes worn on the lower sleeve. The highest-ranking officer in Syria's navy is the equivalent of lieutenant general. Army and air force rank for warrant officers is indicated by gold stars on an olive green shield worn on the upper left arm. Lower noncommissioned ranks are indicated by upright and inverted chevrons worn on the upper left arm.
Nicaraguan Army [1] 
