Geograph - photograph every grid square

The Royal Citadel, Plymouth – part of the south wall

One of Europes finest 17th century fortifications, the Royal Citadel was built (1665-71) by King Charles II on Plymouth Hoe to protect the vital naval base and, it is said, also to keep an eye on the citizens of the town who had rebelled against the king in the recent Civil War. Its 70 foot high walls, on which its old guns could dominate the whole of Plymouth Sound and the Cattewater, are now a ‘national monument’. Link

The Citadel has been a Royal Artillery base throughout the 20th century and for the last fifty years has been the home of 29th Commando Regiment RA who provide artillery support to Commando Forces
Link
Link . Since 29 Regiment assumed the commando role in 1962 it has taken part in the following “peacetime” operations:

Brunei Revolt 1962 Link
Borneo – Indonesian Confrontation 1963-66 Link
Northern Ireland 1969-99 Link
Cyprus UN – Turkish Invasion 1974 Link
Falklands 1982 Link
Balkans UNHCR 1992-99 Link Link
Iraq 2003-09 Link
Afghanistan 2004- Link