The War Sparked by a Lost Dog

A border dispute between Greece and Bulgaria was triggered by a single stray dog. When a Greek soldier chased his runaway pet across the border, he was shot by Bulgarian guards, sparking an invasion.

This bizarre conflict began in 1925 when a soldier crossed the line in pursuit of his dog and was killed. Greece responded by invading Bulgaria with a full military force, seizing the town of Petrich. The League of Nations eventually intervened, forcing Greece to withdraw and pay heavy reparations. It remains a fascinating historical example of how small, tragic accidents can quickly spiral into international military crises.