Monument to the Unknown Hero

The Monument to the Unknown Hero is a World War I memorial located atop Mount Avala, south-east of Belgrade, Serbia, and designed by the sculptor Ivan Meštrović. The memorial was built in 1934-1938 on the place where an unknown Serbian World War I soldier was buried. It is similar to many other tombs of the unknown soldier built by the allies after the war. The Žrnov fortress was previously located on the same place.
On the night of 13/14 October 1915, Combined squad of the Belgrade's Defense, held the line Avala-Zuce, defending it from the joint Austro-Hungarian and German offensive. Austro-Hungarian 9th Hill brigade of the 59th Division took the front rim of Avala on 16 October, with an assignment to push Serbian forces from the mountain. Austro-Hungarians were reinforced with one German half-battalion. However, one Serbian battalion successfully defended the top of Avala against the Austro-Hungarian battalions of the 49th and 84th regiments, aided by the 204th German reserve infantry regiment. On the same day, the command of the Belgrade's Defense ordered the retreat to the new positions so on 17 October occupational forces reached the southern section of Avala, conquering the entire mountain. Their soldiers then buried Serbian combatants who were killed in action. In the valley, below Žrnov, on the grave of one of them, they placed a wooden cross with the inscription in German: "One unknown Serbian soldier".

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