Bulgarian Armistice signed

Bulgarian infantry in a front line trench in Macedonia, February 1917. Note a medical orderly helping a wounded soldier on the left.

The Kingdom of Bulgaria was one of the Central Powers (or Quadruple Alliance) during the First World War when it declared war on the Kingdom of Serbia on 14 October 1915.

The Armistice of Salonica, between Bulgaria and the Allied Powers, was signed in Thessaloniki, Greece on 29 September 1918 following a request by the Bulgarian government on 24 September for a ceasefire. The armistice effectively ended Bulgaria's participation in the First World War. The armistice regulated the demobilization and disarmament of the Bulgarian armed forces and came into effect at noon on 30 October 1918.

Under the terms of the Armistice, German and Austrian-Hungarian troops would leave Bulgaria within 4 weeks and the Allies would not occupy Bulgaria, less the temporary occupation of certain strategic areas as well as the right to transfer Allied troops across Bulgarian territory.

The Armistice was a temporary agreement until the final peace treaty, the Treaty of Neuilly-sur-Seine was signed in France on 27 November 1919.