The Kingdom of Bulgaria entered World War I on the side of the Central Powers on 14 October 1915, invading and occupying parts of Serbia.
The signatories were, for the Allies, French General Louis Franchet d'Espérey, commander of the Allied Army of the Orient, and a commission appointed by the Bulgarian government, which was composed of General Ivan Lukov (member of the Bulgarian Army headquarters), Andrey Lyapchev (cabinet member) and Simeon Radev (diplomat).
Its importance was described by German Emperor Wilhelm II in his telegram to Bulgarian Tsar Ferdinand I: "Disgraceful!
It ordered the evacuation of Bulgarian-occupied Greek and Serbian territories, placed limits and restrictions to the size of Bulgaria's military employment and required Bulgaria to return military equipment that had been taken from the Greek Fourth Army Corps during the Bulgarian occupation of Eastern Macedonia in 1916.
[6] The French would send troops to Romania and the British and Greeks to European Turkey, which was still at war with the Allies.