Thatcher, Reagan and their ilk were certainly not responsible for it coming down, in fact they feared and resented it. In fact Gorbachev stated in a recent interview with a Dutch paper (De Volkskrant)that once the Wall threatened to come down he had a fuming Margaret Thatcher on the phone imploring him to send in the troops to put a stop to it all. 'Let them stay behind the wall' she shouted (according to M.G.).