History of the Irish Naval Service started, and the ships were named "Cliona", "Maev" and "Macha". 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. Between 1968 and 1970, Cliona, Maev and Macha were withdrawn from service. These were replaced by three minesweepers commissioned in 1971: Grainne, Banba and Fola. In 1971 the Naval Service commissioned Verolme Cork Dockyard to build an offshore patrol ship. Named L.É Deirdre, it was the first naval vessel purpose-built in Ireland
Old Royal Naval College painted between 1707-1726 by Sir James Thornhill. The hospital closed in 1869 and the remains of thousands of sailors and officers were removed from the hospital site in 1875 and reinterred in East Greenwich Pleasaunce or "Pleasaunce Park". In 1873, four years after the hospital closed, the buildings were converted to a training establishment for the Royal Navy. The Royal Navy finally left the College in 1998 when the site passed into the hands of the Greenwich Foundation for the Old Royal Naval College. Since 1998 the site has had new life breathed into it through a mix of new