Commodore (Royal Navy) Commodore (Royal Navy) Commodore (Cdre) is a rank of the Royal Navy above captain and below rear admiral. It has a NATO ranking code of OF-6. The rank is equivalent to brigadier in the British Army and Royal Marines and to air commodore in the Royal Air Force. The rank of commodore was introduced during the 17th century in November 1674 (though not legally established until 1806). In 1684 the navy introduced two classes of commodore, the first known as a "Commodore Distinction" and the other a "Commodore Ordinary"; these would later evolve into commodores first and second class. In
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