A fleet review is a traditional gathering of ships from a particular navy to be observed by the reigning monarch or his or her viceroy, a practice allegedly dating back to the 15th century. Such an event is not held at regular intervals and originally only occurred when the fleet was mobilised for war or for a show of strength to discourage potential enemies. However, since the 19th century they have often been held for the coronation or for special royal jubilees (indeed, since Edward VIII it has been regularly held at each coronation, though the one scheduled in the United Kingdom for Queen Elizabeth II's Golden Jubilee was cancelled due to costs. Also, since the 19th century, fleet reviews increasingly often include delegates from other national navies.
In Canada, fleet reviews may take place on either the Atlantic or Pacific coasts, typically in Halifax Harbour for the former and Victoria Harbour for the latter.