Merchant navy

A merchant navy or merchant marine is the fleet of merchant vessels that are registered in a specific country. On merchant vessels, seafarers of various ranks and sometimes members of maritime trade unions are required by the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW) to carry Merchant Mariner's Documents.

King George V bestowed the title of the "Merchant Navy" on the British merchant shipping fleets following their service in World War I; since then a number of other nations have also adopted use of that title or the similar "Merchant Marine". In most jurisdictions, they are seen on the same level as Road or Air Transportation. However, in some countries, such as the UK, due to their uniformed identity and previous war and peace time contributions they are seen as a uniformed 'service'. This is demonstrated in the UK by the Red Ensign and Blue Ensign being on the sides of the Cenotaph in London.

The following is a partial list of the merchant navies or merchant marines of various countries. In many countries the fleet's proper name is simply the capitalized version of the common noun ("Merchant Navy").

During the First World War, the government requisitioned Australian merchant vessels for use as transport ships, hospital ships and cargo ships. During World War II, they were commissioned for use as hospital ships, supply ships and armed merchant cruisers, in particular in the Pacific campaign. Since 2008, 3 September has been officially commemorated as Merchant Navy Day, on the same day as the pre-existing Australian National Flag Day, which allows the Australian Red Ensign to be flown on land for the occasion as a matter of protocol, as an official recognition of the merchant navy's contribution in wartime. The Australian Merchant Navy Memorial in Canberra, the national capital city of Australia, is a memorial honouring the Australian Merchant Navy's involvement in both world wars.

The British Merchant Navy comprises the British merchant ships that transport cargo and people or conduct specialist tasks during times of peace and war.

For much of its history, the merchant navy was the largest merchant fleet in the world, but with the decline of the British Empire in the mid-20th century it slipped down the rankings. In 1939, the merchant navy was the largest in the world with 33% of total tonnage. By 2012, the merchant navy held only 3% of total tonnage.

Canada, like several other Commonwealth nations, created its own merchant navy in a large-scale effort in World War II. Established in 1939, the Canadian Merchant Navy played a major role in the Battle of the Atlantic bolstering the Allies' merchant fleet due to high losses in the British Merchant Navy.

Eventually thousands of Canadians served in the merchant navy aboard hundreds of Canadian merchant ships, notably the "Park Ship", the Canadian equivalent of the American "Liberty Ship". A school at St. Margarets Bay, Nova Scotia, trained Canadian merchant mariners. "Manning pools", merchant navy barracks, were built in Canadian ports.