Air commodore is never shortened to Commodore, which is a rank in various naval forces. Air commodore is a one-star rank and the most junior air officer rank, being immediately senior to group captain and immediately subordinate to air vice-marshal. It has a NATO ranking code of OF-6 and is equivalent to a commodore in the Royal Navy or a brigadier in the British Army or the Royal Marines. Unlike these two ranks, however, it has always been a substantive rank. Additionally, air commodores have always been considered to be air officers whilst Royal Navy commodores have not since the Napoleonic Wars
History of the Royal Australian Navy of INTERFET. The RAN returned to East Timor in 2006 under Operation Astute the United Nations-authorised, Australian-led military deployment to East Timor to quell unrest and return stability during the 2006 East Timor crisis. The Royal Australian Navy deployed the Amphibious Ready Group, including the ships; , , "Tobruk" (until approximately 8 June), "Balikpapan", "Tarakan" and "Success" (until 28 May). The RAN also deployed the HMAS "Adelaide" (until 28 May). The Fleet Air Arm contributed one S-70B-2 Seahawk helicopter from 816 Squadron RAN (until 28 May) and two Sea King helicopters from 817 Squadron RAN. The Royal Australian Navy force