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
Royal Navy coalition operations. The UK Maritime Component Commander, overseer of all of Her Majesty's warships in the Persian Gulf and surrounding waters, is also deputy commander of the Combined Maritime Forces. The Royal Navy has been responsible for training the fledgling Iraqi Navy and securing Iraq's oil terminals following the cessation of hostilities in the country. The Iraqi Training and Advisory Mission (Navy) (Umm Qasr), headed by a Royal Navy captain, has been responsible for the former duty whilst Commander Task Force Iraqi Maritime, a Royal Navy commodore, has been responsible for the latter. The Royal Navy contributes to standing NATO