Hitman are you a Serbian Passport holder?
Hmmm....
Check with Pakistan embassy nearest to you (or whatever way) whats the Pakistanis relations with your country... I dont think its that good.
What we mention above was just a normal route, but visa is different thing you have to find-out, do some home work, paper work, route plans etc... which country you can apply at border, which country you cant just walk-in & stamp your passport, which country doesnt allow Serbians to enter etc...

Example: Im a Malaysian passport holder, I assume that Malaysian have an 'okay' relationship with Americans, coz a friend easily retrived his American visas for 10 yrs! (but his social/economic ties was very stable) I on the other hand had barely enough money to travel were single, had no social/economic ties & here I am applying an American Visa, plus I look like Osama Bin Laden!!! This was before 9/11.
The American Embassy officer said to me: We assume that anybody who come to The United States of America wants to become an immigrant....
I replied: Look I've been to England, Canada, Europe I came back....?
He said: Its not enough..
I replied: Do you mean I have to get married, have children, leave them behind, than you give visas??
So you'll get the picture. So... in your friends case, they wont get the visas because what Slobadan Milosevic's did to the Muslims in Bosnia, etc etc anyway,

Good Luck!

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