Commodore is a senior naval rank used in many navies which is equivalent to brigadier or brigadier general 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.
Lieutenant Commander is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader. It is roughly equivalent to the Corvette Captain rank in central European countries and the Captain 3rd rank rank in eastern European/CIS countries.
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.
Squadron leader is a senior officer rank used by some air forces, with origins from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence.
Wing commander is a senior officer rank used by some air forces, with origins from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence.
Commandant is a title often given to the officer in charge of a military training establishment or academy. This usage is common in English-speaking nations. In some countries it may be a military or police rank. It is also often used to refer to the commander of a military prison or prison camp.
Lieutenant colonel, is a rank in the British Army and Royal Marines which is also used in many Commonwealth countries. The rank is superior to major, and subordinate to colonel. The comparable Royal Navy rank is commander, and the comparable rank in the Royal Air Force and many Commonwealth air forces is wing commander.
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 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 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.
Major is a Senior Officer rank in the Sri Lanka Army. The rank insignia for a major is the Sri Lankan emblem. It ranks below lieutenant colonel and above captain. The equivalent is Lieutenant-Commander in the Sri Lanka Navy and Squadron Leader in the Sri Lanka Air Force.
Lieutenant (abbreviated Lt, LT (U.S.), LT(USN), Lieut and LEUT, depending on nation) is a commissioned officer rank in many English-speaking nations' navies and coast guards. It is typically the most senior of junior officer ranks. In most navies, the rank's insignia may consist of two medium gold braid stripes, the uppermost stripe featuring an executive curl in many Commonwealth of Nations; or three stripes of equal or unequal width.
Lieutenant colonel is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colonel. The rank of lieutenant colonel is often shortened to simply "colonel" in conversation and in unofficial correspondence. Sometimes, the term 'half-colonel' is used in casual conversation in the British Army. In the British military, it is customary to refer to either a Lieutenant Colonel or a Colonel by their first names when mentioning them, e.g "Colonel Tim will be at the parade". In the United States Air Force, the term 'light bird' or 'light bird colonel' is an acceptable casual reference to the rank but is never used directly towards the rank holder. A lieutenant colonel is typically in charge of a battalion or regiment in the army.
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.
Brigadier (Brig) is a senior rank in the Sri Lanka Army. Brigadier is a superior rank to Colonel, but inferior to Major-General. The rank has a NATO rank code of OF-6, equivalent to Commodore in the Sri Lanka Navy and Air Commodore in the Sri Lanka Air Force. It corresponds to the rank of brigadier general in many other nations. In the Sri Lanka Army, brigadier is the highest field officer rank, whereas brigadier-general is the lowest "general" rank in many armies. However, the two ranks are considered equal.
The ranks and rank insignia of the Red Army and Red Navy between 1940 and 1943 were characterised by continuing reforms to the Soviet armed forces in the period immediately before Operation Barbarossa and the war of national survival following it. The Soviet suspicion of rank and rank badges as a bourgeois institution remained, but the increasing experience of Soviet forces, and the massive increase in manpower all played their part, including the creation of a number of new general officer ranks and the reintroduction of permanent enlisted ranks and ratings.
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.
Sri Lanka 
Sri Lanka Army 
Sri Lanka Navy – Commander 
Sri Lanka Air Force – Wing commander 
