Invasion of these isles

Beeb

She said Lord Nelson's leadership qualities had helped lift "a very real threat of an invasion of Britain".

Isn't the Queen at least half german? Isn't she married to a Dane whose family took over the greek crown? Wasn't his family name changed from Battenberg to Mountbatten? Wasn't hers changed from Saxe-Coburg-Gotha to Windsor? Wasn't her great-great-grandmother Victoria the last monarch of the House of Hannover?
At the time of Trafalgar, the King was George III,

the third British monarch of the House of Hanover, but the first to be born in Britain and use English as his first language.

So don't give me bollocks about being saved from foreign invasion!