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.
Brigadier is a military rank, the seniority of which depends on the country. In some countries, it is a senior rank above colonel, equivalent to a brigadier general or commodore, typically commanding a brigade of several thousand soldiers. In other countries, it is a non-commissioned rank.
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.
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.
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 Military ranks of Tanzania are the military insignia used by the Tanzania People's Defence Force. Being a former British colony, Tanzania shares a rank structure similar to that of the United Kingdom.
The Military ranks of Socialist Yugoslavia are the military insignia used by the Yugoslav People's Army.
Rank comparison chart of armies/land forces of Commonwealth of Nations states.
Rank comparison chart of naval forces of Commonwealth of Nations states.
Rank comparison chart of air forces of Commonwealth of Nations states.
Rank comparison chart of air forces of Commonwealth of Nations states.
Rank comparison chart of naval forces of Commonwealth of Nations states.
The military ranks of Uganda are the military insignia used by the Uganda People's Defence Force. Uganda is a landlocked country and therefore does not have a navy. Being a former British protectorate, Uganda shares a rank structure similar to that of the United Kingdom.
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 navies of Anglophone states.
Rank comparison chart of Non-commissioned officer and enlisted ranks for navies of Anglophone states.
Rank comparison chart of officers for air forces of Anglophone states.
Rank comparison chart of Non-commissioned officer and enlisted ranks for air forces of Anglophone states.
Seychelles Army [1] 
