Basically it is like this.....
we used to be in the Asian Federation until the 1970's. In fact our club teams won a few Asian titles. But there were certain clubs that refused to play our teams. Also there are Asian countries that would not play our national team. So eventually we switched to Oceania. Unfortunately the distances are much too great to play in places like Taiwan, Guam, etc. Therefore our football federation asked to be admitted to UEFA. In 1992 we joined UEFA which is much more reasonable as far as travel goes. The level of play is much higher than Oceania too of course. That's it in short. The neighboring countries are not in UEFA because they can play in Asia and have never requested to enter UEFA. Simple.
we used to be in the Asian Federation until the 1970's. In fact our club teams won a few Asian titles. But there were certain clubs that refused to play our teams. Also there are Asian countries that would not play our national team. So eventually we switched to Oceania. Unfortunately the distances are much too great to play in places like Taiwan, Guam, etc. Therefore our football federation asked to be admitted to UEFA. In 1992 we joined UEFA which is much more reasonable as far as travel goes. The level of play is much higher than Oceania too of course. That's it in short. The neighboring countries are not in UEFA because they can play in Asia and have never requested to enter UEFA. Simple.