Irish Naval Service as a permanent component of the Irish Defence Forces. The Naval Service purchased three s from the United Kingdom in 1946 and 1947. The tradition of naming Irish Naval Ships after figures in Celtic Mythology began, and the ships were named , and . These three ships were to become a key part of the Naval Service in the 1950s and 1960s. The first formal training of Irish naval cadets took place at the Britannia Royal Naval College, Dartmouth, UK in 1947. In 1970, "Cliona" and "Macha" were withdrawn from service and scrapped, leaving "Maev" as the sole ship in
Royal Naval College of Canada building was heavily damaged in the 1917 Halifax Explosion. In the Spring of 1918, the college was temporarily moved to facilities at the Royal Military College (RMC) in Kingston, Ontario. In September, the college was relocated to the naval dockyard at Esquimalt, British Columbia. The college was closed in 1922 after a parliamentary decision. The King’s permission was obtained to add the prefix 'Royal' to the title of the Naval College of Canada in October 1910, with the abbreviation being 'R.N.C.C.' The naval college was established at Halifax, Nova Scotia in 1911. RNCC was co-commanded by Lieutenant Commander Edward Atcherley