In my language, there is a political term which is used to indicate that in diplomatic relationships a country doesn't consider the other country as a legal or true country. The only translation I found for it is: "To recognize a country officially / diplomatically".
But, how shall one say it? Let me ask my question in another way; which one of the following sentences sounds more idiomatic:
A) (The country) X does not recognize (the country) Y.
B) (The country) X does not recognize (the country) Y officially.
C) (The country) X does not recognize (the country) Y diplomatically.
If there is a more natural way, then please let me know about it.