Memorial Ossuary Cer, was built in the village Tekeriš on the mountain Cer, the remains of the killed Serbian soldiers after what, which was fought between Austria-Hungary and Serbia in August 1914 during the early stages of the Serbian Campaign of the First World War?
Memorial Ossuary on Cer:  The remains of the killed Serbian soldiers after the Battle of Cer in the First World War were buried there.
i don't know