Warrant officer (WO) is a rank or category of ranks in the armed forces of many countries. Depending on the country, service, or historical context, warrant officers are sometimes classified as the most junior of the commissioned officer ranks, the most senior of the non-commissioned officer (NCO) ranks, or in a separate category of their own. Warrant officer ranks are especially prominent in the militaries of Commonwealth nations and the United States.
A lieutenant is a junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, security services and police forces.
Second lieutenant is a junior commissioned officer military rank in many armed forces. The lowest officer rank, it is usually placed below lieutenant or first lieutenant.
Sergeant (Sgt) is a rank in use by the armed forces of many countries. It is also a police rank in some police services. The alternative spelling, serjeant, is used in The Rifles and other units that draw their heritage from the British light infantry. Its origin is the Latin serviens, 'one who serves', through the Old French term serjant.
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.
Lance corporal is a military rank, used by many English-speaking armed forces worldwide, and also by some police forces and other uniformed organisations. It is below the rank of corporal.
The Ranks and insignia of the Japan Self-Defense Forces are the military insignia used by the Japan Self-Defense Forces.
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 and insignia of the Sri Lanka Air Force are the military insignia used by the Sri Lanka Air Force. Upon the formation of the Sri Lanka Air Force in 1951, rank titles and badges for ORs were adopted from the Royal Air Force officer ranks and other ranks. Sri Lanka does have an Air Chief Marshal rank, but it is only awarded to the Chief of Defence Staff (CDS) or as an honorary rank; Air Chief Marshal Roshan Goonetileke was the only Sri Lankan Air Force officer to hold the air chief marshal rank while in active service.
The Military ranks of Romania are the military insignia used by the Romanian Armed Forces.
The Military ranks of Socialist Yugoslavia are the military insignia used by the Yugoslav People's Army.
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.
Rank comparison chart of armies/land forces of Commonwealth of Nations states.
The Military ranks of Barbados are the military insignia used by the Barbados Defence Force.
The military ranks of Spain are the military insignia used by the Spanish Armed Forces.
The Military ranks of Jamaica are the military insignia used by the Jamaica Defence Force. Jamaica shares a rank structure similar to that of the United Kingdom.
Commissioned officers' and enlisted rank comparison chart of all marine forces.
Rank comparison chart of officers for armies/land forces of Anglophone states.
Rank comparison chart of Non-commissioned officer and enlisted ranks for armies/land forces of Anglophone states.
Rank comparison chart of officers for air forces of Anglophone states.
Lesotho Army [1] 
