"Why USA is buying oil from Saudi Arabia, when Saudis are major exporters of islamism/wehabbism in Europe and source of instabillity in region?"
I don't know? Oil speaks louder than Wabbabbism?
The Royal Saudi Family are afraid of the Islamic nuts who might assassinate them because they're not pure enough.
The Saudis don't have a real military. US is there to protect their interest.
Yes, USA supported Tito`s Regime.
from 1952-1959 Yugoslavia was member of Balkan Pact Yugoslavia-Greece-Turkey against USSR.
All of Yugoslav airbasess were built according to NATO standards (than), and camuflage of Yugoslav AF was made according to NATO paint scheme. All Yugoslav-made jets were armed by US-made missiles (AGM-65B Maverick)
During Iraq-Iran war Yugoslavia sold $30 bn to Iraq, with US blessing.
And the anwser about ties with Sadam you gave yourself.
"Oil speaks louder than hatenance toward dictator".
Serbia was forced to buy oil from Saddam and Khaddafi, for simple reason- we couldn buy it anywhere else, cause Clinton barred us to.
We are training their Military....SANG, advised by OPM-SANG. I was one of the security specialist tasked with providing security for their facilities after 1996 for three years. Also worked for Vinnell that trains the Saudi national Guard......what protects the Royal Family. Different and "separate" from MODA and MOI.....by mission and tribes even.......