Why did the Romans invade Palestine in 63BC?

The conquest of Serbia came with the conquest of Illyricum, which included the former Yugoslavia and Albania.This was due in great part due to the strategic importance of Dalmatia, which covered the eastern coast of the Adriatic Sea. There had been problems with pirates form Illyricum. The conquest gave control to the whole of this sea and the ports along the eastern coast. Dalmatia also had gold mines.

Most of Serbia came under the province of Pannonia, which included northern Croatia western Hungary and eastern Austria. This region was important for control over the river Danube and its trade.