First Serbian Campaign

Austro-Hungary begins its offensive south, hoping to take down Serbia as soon as possible.

Austro-Hungary could hope to face Russian Empire in a prolonged battle only when it could fully commit itself to it. To do that, however, Kingdom of Serbia had to be defeated as soon as possible... and, preferably, by forces that weren't strong enough for the lack of them to hurt if Russia started its offensive too early.   While initially the local command planned for immediate offensive push from north-western edge of the Serbian territory. Commander-in-chief of the Austro-Hungarian Empire - archduke Franz Ferdinand - instead advocated for a much more cautious approach. Austro-Hungarian army finished gathering forces and then move from north, through less mountainous area.   The offensive ended with some successes, with the border clashes mostly favouring Austro-Hungarian army. However, instead of a decisive victory, the border was merely pushed back towards Belgrad. Which was caused by both incompetence of Austro-Hungarian commanders on the frontline and overly cautious approach of the commander-in-chief.