A quote from Peter Almond in The Sunday Times, 11 June 2006

One of Britain’s most senior military strategists has warned that western civilisation faces a threat on a par with the barbarian invasions that destroyed the Roman empire. In an apocalyptic vision of security dangers, Rear Admiral Chris Parry said future migrations would be comparable to the Goths and Vandals while north African “barbary” pirates could be attacking yachts and beaches in the Mediterranean within 10 years.

Europe, including Britain, could be undermined by large immigrant groups with little allegiance to their host countries – a “reverse colonisation” as Parry described it. These groups would stay connected to their homelands by the internet and cheap flights. The idea of assimilation was becoming redundant, he said. [...] He pinpoints 2012 to 2018 as the time when the current global power structure is likely to crumble. Rising nations such as China, India, Brazil and Iran will challenge America’s sole superpower status.