Category check for China in the Vietnam War please

Question

I think probably for the first time, I've started work within the Vietnam War, given a lieutenant in my family served two tours (he's an American), and I've observed that there are 3 existing categories for China (under 3 different names), in the Vietnam War category

Answer 1

Ugh. Good catch. Can M&W clarify which of the three is correct, please? Republic of China is Taiwan, so maybe that needs to be changed.