Merchant navy

world oldest profession Merchant Navy (or Merchant Marine) refers to the merchant fleet of a country, which varies in capacity.

Seafarers on merchant vessels, who hold various military-like ranks and responsibilities and are sometimes members of various maritime trade unions, are required by the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers 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 .