Interesting article in the Guardian last week on the decline of British power in the world and the inversely proportional surge in jingoism:
"The rattling of the old jingoistic sword is a sure sign that the English ruling class feels its power ebbing away, torn between a European super-state, the aspirations of the Celtic fringe and demographic changes within England itself. Whether the English can awake from their long dream of empire and use this opportunity to renew their sense of identity remains to be seen."
In Londonstani's experience, jingoism is definitely not limited to the UK, or England. That sense of belligerent nationalism can be found pretty much anywhere countries feel a sense of power and prestige ebbing away. Often, the greater the perceived past glory, the more ugly the jingoism, and the greater ability to ignore present failings (umm Egypt), or blame others (... Pakistan).
Anyway, Billy Bragg suggests:
"Unless and until we throw off our imperial pretensions and begin to relate to our neighbours as equals, joining with them in creating new networks of active devolution and shared sovereignty, we English are in danger of becoming an insular people, jealously guarding the right to make our own laws while increasingly unable to control our destiny."
Easier said than done... but still good idea.