 The coming to power of Margaret Thatcher in 1979 led to the last hurrah of UK civil defence.A review in 1980 called for the network to be recast as Regional Government Headquarters (RGHQ), which would be equipped with up-to-date communications and either based on the existing SRCs or housed in completely new accommodation.The programme was slow to start however, and three new sites, carried on again in complete secrecy, were not completed until the 1980s with only a few years to go before the end of the Cold War made civil defence entirely redundant.