Again you're mixing up stuff. Let me see if I can sort it out for you. I don't really see what the US support for Mujaheddin has to do with the neo-nazis in Croatia.
In the Balkans people were being massacred in day light (with the Europeans looking on) and the US intervened (late), to put an end to that barbarism. Don't waste your time in trying to convince me that the US came to help Al-Qaeda out in the Balkans.