When you are a small country like the UK or France, just take your testing to the Outback or French Polynesia and blast away there. Although this is history from the past, it is somewhat scary to watch, lets hope that we never see Nuclear testing or actual used of these in the future.

http://memolition.com/2013/10/16/time-lapse-map-of-every-nuclear-explosion-ever-on-earth/

Joe