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 Between 1968 and 1970, Cliona, Maev and Macha were withdrawn from service.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 a unique "ancient and modern" blend that support 21st century life in Greenwich. The Old Royal Naval College and the "Maritime Greenwich" World Heritage site are becoming focal points for a wide range of business and community activities. Trinity College of Music provide a wide range or musicians and ensembles on a subsidised commercial basis to play at events throughout East London and beyond, part of their business and community “out-reach” policy encouraged and part-funded by the Higher Education Funding Council. The site is regularly used for filming television programmes, television advertisements, and feature films. Productions have included "Patriot Games",