Commodore is a senior naval rank used in many navies which is equivalent to brigadier and air commodore. It is superior to a navy captain, but below a rear admiral. It is either regarded as the most junior of the flag officers rank or may not hold the jurisdiction of a flag officer at all depending on the officer's appointment. Non-English-speaking nations commonly use the rank of flotilla admiral, counter admiral, or senior captain as an equivalent, although counter admiral may also correspond to rear admiral lower half abbreviated as RDML.
Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral.
Military ranks are a system of hierarchical relationships, within armed forces, police, intelligence agencies or other institutions organized along military lines. The military rank system defines dominance, authority, and responsibility in a military hierarchy. It incorporates the principles of exercising power and authority into the military chain of command—the succession of commanders superior to subordinates through which command is exercised. The military chain of command constructs an important component for organized collective action.
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.
Brigadier general or Brigade general is a military rank used in many countries. The rank is usually above a colonel, and below a major general or divisional general. When appointed to a field command, a brigadier general is typically in command of a brigade consisting of around 4,000 troops.
Commander is a common naval officer rank as well as a job title in many armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countries this naval rank is termed frigate captain.
An aide-de-camp is a personal assistant or secretary to a person of high rank, usually a senior military, police or government officer, or to a member of a royal family or a head of state.
Air commodore is a senior rank in the air forces of the United Kingdom and other countries including Australia, New Zealand, India, Pakistan and Zimbabwe. It is a one-star rank and is an air officer rank. It originated in, and continues to be used by the Royal Air Force.
Air Chief Marshal is a high-ranking air officer originating from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence. An air chief marshal is equivalent to an Admiral in a navy or a full general in an army or other nations' air forces.
A senior officer is an officer of a more senior grade in military or other uniformed services. In military organisations, the term may refer to any officer above junior officer rank, but usually specifically refers to the middle-ranking group of commissioned officers above junior officer ranks but below flag, general or air rank. In most countries, this includes the ranks of lieutenant commander/major/squadron leader, commander/lieutenant colonel/wing commander and naval captain/colonel/group captain, or their equivalents. In some countries, it also includes brigadiers and commodores.
A five-star rank is the highest military rank in many countries. The rank is that of the most senior operational military commanders, and within NATO's standard rank scale it is designated by the code OF-10. Not all armed forces have such a rank, and in those that do the actual insignia of the five-star ranks may not contain five stars. For example: the insignia for the French OF-10 rank maréchal de France contains seven stars; the insignia for the Portuguese marechal contains four gold stars. The stars used on the rank insignias of various Commonwealth of Nations are sometimes referred to colloquially as pips, but are stars of the orders of the Garter, Thistle or Bath or Eversleigh stars depending on the wearer's original regiment or corps, and are used in combination with other heraldic items, such as batons, crowns, swords or maple leaves.
Gorget patches are an insignia in the form of paired patches of cloth or metal on the collar of a uniform (gorget), used in the military and civil service in some countries. Collar tabs sign the military rank, the rank of civil service, the military unit, the office (department) or the branch of the armed forces and the arm of service.
The following tables present the ranks and insignia of the Sri Lanka Navy. These ranks are similar to Royal Naval officer ranks and the ratings ranks. Sri Lanka does have an Admiral rank, but it is usually only awarded to the Chief of Defence Staff (CDS) or as an honorary rank; Admiral Wasantha Karannagoda was the only Sri Lankan naval officer to hold a full admiral rank while in active service.
Brigadier (Brig) is a senior rank in the British Army and the Royal Marines. Brigadier is the superior rank to colonel, and subordinate to major-general. It corresponds to the rank of brigadier general in many other nations.
General is the highest attainable and full general rank of the Sri Lankan Army and was created as a direct equivalent of the British military rank of general; it is also considered a four-star rank.
Lieutenant general is the second-highest rank of the Sri Lanka Army and generally it is the highest active rank as the Sri Lanka army do not have any appointment in the rank of full general but in the case of the appointment of Chief of Defence Staff, the rank of full general is given. It was created as a direct equivalent of the British military rank of lieutenant general, and is considered a three-star rank.
Major General is a senior rank in the Sri Lanka Army, and was created as a direct equivalent of the British military rank of major general. It is the second-highest active rank of the Sri Lanka Army while the Lieutenant General is the highest, and is considered to be equivalent to a two-star rank. A major general commands a division or the equivalent or performs staff duties in army headquarters.
Colonel (Col) is a senior officer rank in the Sri Lanka Army that is a superior rank to lieutenant colonel and subordinate to Brigadier. The rank has a NATO rank code of OF-5, equivalent to captain in the Sri Lanka Navy and group captain in the Sri Lanka Air Force. It was the highest rank in the Ceylon Defence Force.
Star Insignia of Army officer vehicles differ from each other starting from one star up until five stars. The first four stars should be granted to an officer in active duty while the fifth Star insignia can be wore by a retired officer. The only retired officer who is permitted to wear the five star insignia in Sri Lanka is Field Marshal Sarath Fonseka.
Sri Lanka 
Sri Lanka Army 
