In 1994 France passed a law banning the use of English words in official documents.
There followed a highly entertaining (if you like that sort of thing) debate in the UK House of Commons as to whether to retaliate by banning French words[1][2]. The difference being, they were only joking while the French were deadly serious.
[1] https://www.youtube.com/watch?v=eH0wvkZmGKQ&t=70
[2] https://hansard.parliament.uk/commons/1994-07-05/debates/8a1...
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