Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral.
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.
A chief petty officer (CPO) is a senior non-commissioned officer in many navies and coast guards, usually above petty officer.
Group captain 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.
Air marshal is an air-officer rank used by some air forces, with origins from the Royal Air Force. The rank is used by the air forces of many countries which have historical British influence, including many Commonwealth nations. The rank is usually equivalent to a vice admiral or a lieutenant general.
Flight sergeant is a senior non-commissioned rank in the Royal Air Force and several other air forces which have adopted all or part of the RAF rank structure. It is equivalent to a staff sergeant or colour sergeant in the British Army, a colour sergeant in the Royal Marines, and a chief petty officer in the Royal Navy, and has a NATO rank code of OR-7. In the RAF, flight sergeant ranks above chief technician and below warrant officer.
Leading aircraftman (LAC) or leading aircraftwoman (LACW) is an enlisted 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.
Like the British Army, the Australian Army does not use the term 'enlisted' to describe its non-commissioned ranks. Instead, personnel who are not commissioned officers are referred to as other ranks. These are soldiers, non-commissioned officers (NCOs) and warrant officers (WOs). Warrant officers are appointed by a warrant which is signed by the Chief of the Army. The insignia for non-commissioned ranks are identical to the British Army up to the rank of warrant officer class two. Since 1976, WO1s and the WO in the Australian Army wear insignia using the Australian Coat of Arms.
The Australian Defence Force's (ADF) ranks of officers and enlisted personnel in each of its three service branches of the Royal Australian Navy (RAN), the Australian Army, and the Royal Australian Air Force (RAAF) inherited their rank structures from their British counterparts. The insignia used to identify these ranks are also generally similar to those used in the British Armed Forces.
Rank comparison chart of officer ranks for armies/ land forces of Oceanian states.
Rank comparison chart of armies/land forces of Commonwealth of Nations states.
Rank comparison chart of naval forces of Oceanian 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.
Rank comparison chart of armies/land forces of Commonwealth of Nations states.
Comparison of ranks and insignia of all current and former space forces, to include aerospace forces and air and space forces or air forces with space units and formations.
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.
Royal Australian Air Force [1] [2] 
Federated States of Micronesia 
Fiji 
Kiribati 
Marshall Islands 
Nauru 
Royal New Zealand Air Force [3] 
Palau 
Papua New Guinea Air Element 
Samoa 
Solomon Islands 
Tuvalu 
Vanuatu