Swamps my arse, we still find German bombs in undesirable suburbs of London:

https://www.theguardian.com/uk-news/2017/mar/03/second-world...

Of course, it's a mutual thing:

http://www.bbc.co.uk/news/world-europe-39828327

But, as usual, it's the French who practice this at its highest level:

https://en.wikipedia.org/wiki/Zone_Rouge