This is pretty arbitrary. North Korea hates Japan but not South Korea? Turkey hates Greece but not Russia? Iraq hates Kuwait, not Iran? Ethiopia doesn't hate Somalia, despite the Ethiopian-Somali Conflict? Western Sahara and Palestine aren't even officially countries, according to this site, or the UN. "Hate" is difficult to quantify. How about a list of countries that are actively engaging each other militarily? There can be no debate about such a list.
This quiz, I assume, is based on actual political events, such as trade embargoes, religious/idealogical disputes, power struggles, etc. It seems realistic to me.
Theres a lot other hatreds that don't make it on, plus the Armenian Azerbaijani feud is a bit more intense, now even with active conflict (I know there wasn't when this comment was made).
So jetpunk does not recognise Palestine as a country and Western Sahara is not a independent country if you think it is then you must think Hong Kong and czechoslovakia still exists