On 28 July 1914 a large military conflict, the so-called First World War, also known as the Great War, breaks out in Europe.
The war marks the dramatic ending of a turbulent period of intensive national, political and sovereignty-related conflicts between the Great Powers of Europe, as well as profound socio-economic crisis.
The Forces of the Entente Cordiale, Great Britain, France, Italy, Russia, the USA, and the Central Powers or Quadruple Alliance, Germany, Austria-Hungary, the Ottoman Empire, Bulgaria, made up the two opposing sides.
Five main military fronts were formed: The Western, the Eastern, the Italian, the Middle Eastern and the Macedonian Front.
The Macedonian Front began in October 1915 with the mass landing of the allied forces, being represented basically by the British Salonika Army and the French Army of the Orient, on the port of Thessaloniki. Their main objective was to restrain the imminent descent of the opponent forces to the Aegean Sea.
The Allies established the so-called "Entrenched Camp" around Thessaloniki, in an area extending from the Gallikos and Axios rivers to the lake Langadas.
Τhe Kilkis region, behind the battle lines, was a fully peaceful area, where locals and refugees lived, mainly carrying out agricultural work.