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 In 1970, "Cliona" and "Macha" were withdrawn from service and scrapped, leaving "Maev" as the sole ship in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 Swedish Naval Staff College added. Only the coastal artillery course included physics. In higher education courses, special subjects were included, and in some of the general course subjects. In 1926 there were teachers in 18 subjects. As students, the Navy's subaltern officers were commanded in turn; an entry qualification was not needed. The Royal Swedish Naval Staff College was discontinued in 1961 and the Royal Swedish Armed Forces Staff College was formed by merging war colleges of the different military branches, namely the Royal Swedish Army Staff College (established 1878), the Royal Swedish Naval Staff College (established 1898) and the Royal Swedish Air Force