what would you call a phobia of...

@ADX98927 To be honest, I don't think that there is a word for "fear of korea or china"

Probably because it's too specific. It might help to know what exactly it is that makes you afraid of these countries to help narrow down the search for a specific term. in the meantime, I suggest the term xenophobia. Unfortunately this term is often used in a negative connotation because the definition of the word is "fear or hatred of that which is percieved as strange or foriegn"

Be careful when using the term because even though the definition indicates it can be a fear, xenophobic is usually used interchangeably with racist.