Serbs are no terrorists. Serbs never attacked a foreign country, except in 1885 - the Serbo-Bulgarian war. The only thing Serbs ever did was defending their country from invaders and thieves which desperately tried to get a piece of it.

Austrian and German empires were by far the strongest powers in Europe, before and during WW1. Yet, they collapsed and fell to the ground like autumn leaves when they decided to attack Serbia.

If anything should be learned from history - that is that.