salute. As the tradition evolved, the number of cannon fired became an indication of the rank of the official being saluted. By country United Kingdom Commissioned ships and submarines of the Royal Navy wear the White Ensign at the stern whilst alongside during daylight hours and at the main-mast whilst under way. When alongside, the Union Jack as distinct from the Union Flag, is flown from the jackstaff at the bow, but can only be flown underway in special circumstances. A fleet review is a tradition of assembling the fleet before the monarch. In June 2005, to mark the bi-centenary of the Battle of Trafalgar, 167 ships of the RN, and 30 other nations, were present at a fleet review. The naval salute differs from the military salute in that it has the palm turned down, rather than outwards. The RN has evolved a rich volume of slang, known as Jack-speak. Nowadays the British sailor is usually Jack (or Jenny) rather than the more historical Jack Tar. Nicknames for a British sailor, applied by others, include Matelot (pronounced "matlow"), and Limey - mainly redundant in use within the Royal Navy. Royal Marines are fondly known as Bootnecks or often just as Royals. Nicknames for the service include The Andrew or Andrew Miller (of uncertain origin, possibly after a zealous press ganger) and The Senior Service as the oldest of the military branches. Within the Merchant Navy the Royal Navy is known as The Grey Funnel Line. References Traditions Maritime culture Military traditions