Hanging of Serbs in 1914, Trebinje, Bosnia and Herzegovina, Austria-Hungary.<br><div class="thumb tleft"><div class="thumbinner" style="width:352px;"><a href="//commons.wikimedia.org/wiki/File:Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png" class="image"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png/350px-Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png" decoding="async" width="350" height="219" class="thumbimage" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png/525px-Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png/700px-Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png 2x" data-file-width="3288" data-file-height="2057"></a>  <div class="thumbcaption"><div class="magnify"><a href="//commons.wikimedia.org/wiki/File:Austro-Hungarian_WWI_killing_of_Serbs_in_Hercegovina.png" class="internal" title="Enlarge"></a></div>Other version.</div></div></div>
From photograph collection of <a href="https://cs.wikipedia.org/wiki/Zikmund_Reach" class="extiw" title="cz:Zikmund Reach">Zikmund Reach</a>, Prague.
1914
Archive photo, Sarajevo, scanned from "Sarajevo 1914" by V. Dedijer