I have recently posted an e-mail on a Francophone SF mailing list. I asked why they often use the word "Anglo-Saxon" talking of US or British literature, when it is - IMHO - completely inappropriate. I proposed "Anglophone", but someone explained to me that "Anglo-Saxon" is used ONLY for US and British literature, leaving aside Canadian, Australian etc. ones. This, they explained, because these two countries have a certain "cultural unity" that distinguishes them from other territories of the British Empire. 

So, what do you make of it? And what about science fiction? Do you think there is a "cultural unity" between Britain and US?

PS: Please, feel free to invite anyone who might be interested