They are as violent as anyone else out there.
However the Serbs have had and do have the most motivated military in the Balkans.
In Serbia if you can't go to the army then there is a doubt that you can't have a wife and father children.
ANY SERB HERE FROM COUNTRY SIDE SAY IT AIN'T SO!!! :))
Since early 20th century their military has been more professional due to French influence and name a war they haven't been in it. There is a large number of Serbs in the French Foreign Legion.
As we all know they kicked off WWI.
But go to Serbia and they as pleasant as anyone else.
In a restaurant a waiter in Serbia is more pleasant than one in Macedonia (although I had couple unpleasant experiences with morons).
The football club supporters are the most militant and worse than British hooligans.
A lot of time they do irrational things out of stuburness than anything else. If you say this is Black they say is white and don't waste your time to convience him.
I can say the Serbs are just normal.
That's why I got so surprised and confused when some people I knew suddenly became anti-Serb in 1998 and 1999. Where exactly did everyone get their strange ideas about Serbs, I wondered?
I still don't know the answer.