No.
Firstly: Let us reject any scare-mongering sensationalism - even a successful inVasion would have just delivered the world the hilarious picture of English gentleMen turning into guerilleros (unless the Hitlerists had extincted most Britons).
There are mountains in the Scottish Highlands and Snowdonia and a few smaller ones elsewhere.....
I had never heard of Snowdonia in my life until yesterday.
Now I have heard it twice in 2 days.
That's the Baader–Meinhof phenomenon for you.
Yes, it happened to me with a word last year. I had never come across that word in 50 years of life, then I saw it two days in a row.